Moraug, Fury of Akoum has been worded specifically that the landfall needs to trigger in your main phases as to stop a number of pretty obvious combos that could be done with say Sword of the Animist.
The ability also only gives you an additional combat step and not an additional main phase, so unless you have a way to give yourself other main phase you can't look to get infinite attacks.
Also if you were looking at attack or combat triggers of any kind to try and establish landfall then you can't do it directly without some other help.
Alright so fine, we have to work harder to get additional attacks in a single turn. We like a challenge.
How do you get lots of lands into play in a single turn?
Lands
The deck is full of lands that sacrifice to search for other lands. This way you can play and land and then sacrifice it straight away to get at least 2 additional attacks.
Some of them can tap for colorless mana so that you can wait until Moraug is in play before sacrificing them.
One way to get around having to sacrifice the others is to use Chromatic Lantern to tap them for mana.
With so many tapped lands Amulet of Vigor can really help to smooth out mana as well as have the interaction allowing some more single turn landfall triggers.
So with Amulet of Vigor and Mountain Valley, Rocky Tar Pit, Thawing Glaciers you can get 2 additional attacks and Myriad Landscape even would allow for 3 additional attacks.
Terrain Generator and Isolated Watchtower can also be used put extra lands into play.
Creatures
There are creatures that can put additional lands into play in Walking Atlas, Alpine Guide, Burnished Hart, Solemn Simulacrum, Scaretiller, Oblivion Sower.
Kiki-Jiki, Mirror Breaker and Feldon of the Third Path can make copies of these creatures for even more triggers.
Artifacts
There are some artifacts that allow you to put additional lands into play.
Wayfarer's Bauble can search your library for basics.
Ghirapur Orrery is a symmetrical effect that plays out an additional land each turn.
Sorcery
Nahiri's Lithoforming can be a bomb in this deck. I literally will sacrifice all my lands in an attempt to play out as many lands as possible. It has been game winning each time I've cast it.
Combos
Because Moraug, Fury of Akoum untaps your creatures you can look to get advantages in a number of ways.
When you have creatures that can tap for mana you'll get access to that mana each new combat.
If lands become creatures then you'll be able to untap them as well.
Embodiment of Fury with landfall can make a land a creature. This is a super powerful ability in this deck.
As part of being able to produce mana with lands becoming creatures, if you specifically have Thawing Glaciers then it untaps and you can use it as it doesn't return to hand until the end of turn.
So a sequence you look for is play Embodiment of Fury and put Thawing Glaciers into play pre-combat. Use the Embodiment of Fury trigger to make the Thawing Glaciers a creature as well. Now when you go to your additional combat it will untap.
Next main phase you can use the Thawing Glaciers to get a Mountain and then use Embodiment of Fury landfall trigger to make another land a creature. This guarantees you at least additional combat each turn.
You can also look to untap Terrain Generator or Isolated Watchtower for additional uses in a single turn.
With Sword of Feast and Famine (if you get to connect) will untap all your lands as well.
Scaretiller can bring a land card back from your graveyard each combat, but Moraug, Fury of Akoum doesn't trigger because it's not your main phase.
However if you have a way to untap that land and it is a fetchland, which is any land that you can sacrifice to search for another land of various types.
The deck is actually chocoful of these type of lands. There are 18 of them actually.
Here is an example if you had Embodiment of Fury then you can make that tapped fetchland a creature. As long as you can create another landfall trigger you can have another combat and the fetchland will then untap as a creature.
Also Sword of Feast and Famine will untap all your lands so can use it here to combo with Scaretiller and a fetchland.
Paradise Mantle can be used to tap Scaretiller in your main phases.
If you have Walking Atlas then it untaps each time you have an additional combat. So as long as you have a land in hand you can get an additional combat.
Goblin Engineer and Goblin Welder can exchange artifacts, so if you can specifically keep targeting Wayfarer's Bauble or Burnished Hart or Synod Sanctum.
Combat matters
Often what you are trying to achieve is to build out a creature base that has advantages with combat directly whether that is attack or damage bonuses or even creatures with tap abilities as you do get to untap creatures as part of the additional combat.
Given this you want to curve out as much as possible with creatures. In a good game you'd really want to deploy creatures each turn until you are ready to cast Moraug, Fury of Akoum.
In my initial build I focused too much on trying to trigger landfall and not enough on actual attack advantages. So even though there are more ways you can trigger landfall potentially, you need to balance between creatures that attack and getting more attacks.
If you're familiar with my threads you'll know that I go d.e.e.eeeeeeep into potential interactions and so I list a whole lot of ideas that I thought about for theory-crafting around getting multiple landfall triggers at the end of this post.
Right so the creature base as I mentioned benefits from curving out so I've tried to make a bit of a distribution between 1-6 converted mana creatures with resource advantages of various kinds..
Card advantage creatures include Bomat Courier, Smuggler's Copter, Grenzo, Havoc Raiser, Robber of the Rich, Magmatic Channeler, Subira, Tulzidi Caravanner, Anje's Ravager, Stromkirk Occultist, Grotag Night-Runner, Tectonic Giant, Neheb, Dreadhorde Champion, Etali, Primal Storm.
Cyclops Gladiator,Glorybringer and Inferno Titan can deal damage to creatures, clearing the way for good attacks.
One thing I didn't really factor in when I initially is that the +1/+0 for each time a creature attacks does actually add up.
So going wide does have some appeal. With this in mind I tried Loyal Apprentice, Hanweir Garrison, Krenko, Tin Street Kingpin, Goblin Rabblemaster, Legion Warboss.
If you look at an example sequence, say you've cast Goblin Rabblemaster and then say Moraug, Fury of Akoum two turns later.
You'll have potentially have 3x 1/1 Goblins and they'll be attacking as 2/1's. Then say you get 2 additional attacks with a fetchland. By the last attack you'll have 3x 4/1, 1x 3/1, 1x2/1.
Goblin Rabblemaster could be attacking 3 times that turn as a 6/2, 8/2, 10/2.
All up that is 58 power you can attack with that turn literally just off Goblin Rabblemaster (if nothing gets killed). It adds up!
However I found Hanweir Garrison and Krenko, Tin Street Kingpin are not nearly as good as the others. The reason is that the tokens do not get haste, so you actually don't get any real benefits until the next turn.
Sure Hanweir Garrison can put attacking creatures into play, but with additional attacks they untap but they actually can't attack again as they don't have haste.
It just doesn't have quite the same escalation that I showed in the Rabblemaster example.
There is some equipment that can help to make multiple attacks better with equipping some of the lower converted creatures for more benefits with Sword of Feast and Famine, Sword of Fire and Ice, Sword of Light and Shadow, Sword of the Animist, Umezawa's Jitte.
Even though Sword of the Animist will not specifically trigger Moraug ability, it is still nice putting additional lands into play in general.
Fervent Champion is a nod to just being able to get more use out of equipment for freeing up mana.
Neheb, the Eternal is a beast for doing all the things post combat to enable a game winning turn.
Combat Celebrant represents another attack and even if you've exerted it the previous turn for example, because of Moraug ability to untap creatures you'll get to exert it for an additional attack.
Also goes infinite with Kiki-Jiki, Mirror Breaker and if you can produce additional each combat step you can go infinite with Feldon of the Third Path. The likely scenario is with Embodiment of Fury making 3 lands creatures or either of the Nehebs'.
Because you can often finish opponents in a single turn Purphoros, Bronze-Blooded can be used to just get creatures into play the turn you draw them and as a surprise factor, plus he gives your creatures haste which is amazing, and also getting the 5 devotion is pretty easy with Moraug providing a couple of pips.
Evasion
Because you are wanting to get advantages from your creatures during combat, often your opponents will have problematic blockers.
There there is a reasonable amount of ways to push your attacks through.
Bedlam simply means that nobody can block.
War Cadence will often keep people off blocker in an efficient manner as they have to tap low to deploy cards.
Sword of Feast and Famine, Sword of Fire and Ice, Sword of Light and Shadow all give protection against certain colors and they have often been a target of Goblin Engineer to tutor for the correct one to get protection from an opponent or two to get in damage with a relevant creature attack.
Moraug Voltron
Now one thing to touch upon is that Moraug, Fury of Akoum himself as a Voltron commander is viable.
With the +1/+0 each attack, he'll attack for 7, then 8, then 9, meaning you can kill a single player for the first 3 attacks if unblocked. That's just a single fetchland played and sacrificed in order to attack a player for lethal. Yikes!!
Then on the 4th and 5th attacks he will be attacking for 10 and then 11 damage, which is 21 commander damage. Therefore you can kill another player with just 2 more attacks as well.
What other ways are there to get extra lands into play or additional triggers from Moraug?
I've already mentioned that you need to balance your game between trying to get multiple landfall triggers and actually being able to use those effectively, meaning you really want a threshold of creatures to attack with in a meaningful manner.
My initial build(s) had some of these further landfall interactions, but I found quite a few games where I just didn't have a good enough army of creatures to make use of the additional attacks.
I'm not saying it's incorrect to play these cards, but you just want to make sure that your deck doesn't fizzle because of this.
Obviously Red is not know for its land ramp abilities, so methods have to be a bit creative...well a lot more creative.
This following section is cards that I tried (contained in this box), but ultimately replaced, not because they don't work well, but as I said you want to make sure your actual attacks are worthwhile and I found myself getting "additional attack" flooded without actual good attacks.
I had From the Ashes (and even Stranglehold to go along with this), but most of the non-basics in the deck are used for searches anyway.
But the idea is that it more mana efficient way to get lots of triggers as some of the lands require investing at least one or two mana plus tapping the lands themselves.
Better in a deck that has more utility non-basic lands.
Cleansing Wildfire and Geomancer's Gambit play a similar role in that you can target your own lands in order to search a basic for a landfall trigger.
A neat trick is that you can play and target Darksteel Citadel as it's indestructible, so you'll get to still search for a land while keeping the Citadel.
Storm Cauldron allows all players to play an additional land each turn, but also returns lands when they are tapped for mana, thus constricting everybody mana potentially.
Surveyor's Scope can get multiple lands potentially, although it is unlikely that more than one opponent will have 2 lands more. Even getting one opponent requires quite a hard core ramp strategy (from them) as this deck does look to ramp lands as well so you are often level with opponents on lands.
If the lands and mana line up right then you can sacrifice a number of your fetchlands and while they haven't resolved, then use the Surveyor's Scope with the idea of having 2 less lands than opponents.
Synod Sanctum is interesting in that you can keep exiling lands through turns so that when you sacrifice it a bunch of lands come into play all at once. This means as long as you can manage afford to be down a land each of these turns you can get lots of triggers potentially.
Drownyard Temple can be brought back from your graveyard and so with a sacrifice lands ability you can look to reuse it.
I originally had Need for Speed and Drownyard Temple in the deck, but cut them in the end.
Top of Library
Isolated Watchtower can be used if an opponent has 2 more lands than you. See my thoughts on Surveyor's Scope why it is hard to use this card consistently.
Druidic Satchel can put a land into play off the top of your library.
Pyxis of Pandemonium is another top of library way to build up lands for a single big turn.
Chaos Warp and Matter Reshaper are totally random what you'll hit as a shuffle effect happens first.
Creatures
Petradon and Petravark can target your own lands and so if you have a way to kill them during a main phase you'd get the landfall triggers.
Worldgorger Dragon can exile all your lands, but the problem is that it exiles everything so actually killing it is incredible tricky.
There are a lot of ways you could do it, but
Greater Gargadon suspended is one of the easiest ways.
If you had mana left over after casting the Worldgorger Dragon then you could of course cast a card from your hand which allows you to kill it. Blasphemous Act costing is the type of play you'd want.
You'd also need a haste enabler in order to get any benefits of attacks once everything comes back into play.
Chaos effects
Warp World would be completely random what would happen. The fact that you need Moraug in play at the same time as the lands coming into play means that you'd actually need to shuffle Moraug into your library and hope to hit him! Realistically better with him as part of your 99 card strategy with Warp World.
Copying creatures
Now the deck already has Kiki-Jiki, Mirror Breaker and Feldon of the Third Path to copy creatures, but you could extend this further to create more of the ones that can put lands into play.
Cards that I've identified that you can do during a main phase.
Flameshadow Conjuring, Heat Shimmer, Kindred Charge, Mirror March, Molten Echoes, Splinter Twin, Twinflame, Mimic Vat, Minion Reflector, Mirrorpool, Soul Foundry, Soul Separator, Lithoform Engine, Helm of the Host.
Helm of the Host can also make copies of Moraug himself for multiple triggers.
Mirror Gallery could also be used to make copies of Moraug with the various other copy creature cards.
Copying Activated or Triggered abilities
Alternatively you could look to copy some of your activated or triggered abilities to get further uses.
Moraug, Fury of Akoum landfall trigger is..well a triggered ability.
In this manner Lithoform Engine or Strionic Resonator can be used to copy a landfall trigger.
Also all the lands or artifacts that search for other lands are activated abilities, so you can also copy these to get additional lands into play.
Rings of Brighthearth and Lithoform Engine can copy activated abilities.
Rowan Kenrith emblem will trigger each time an activated ability copying it. Rowan other abilities are also relevant to an attack strategy as you can force an opponents creatures to attack leaving few blockers potentially and also the 3 damage can clear out some creatures as well for future attacks.
Kurkesh, Onakke Ancient can copy Wayfarer's Bauble and Surveyor's Scope activation.
You can also copy these with Mirage Mirror, Prototype Portal, Sculpting Steel.