Greven got some easy to slot in and amazing cards from Zendikar Rising.
Of the cards that are either spells or lands,
Agadeem's Awakening and
Shatterskull Smashing are easy to include as both secondary spells that can provide use throughout games, that simply replace other lands.
Shatterskull Smashing killing off a blocker or two to push through lethal.
Agadeem's Awakening can be used later on in the game to bring back a number of creatures. The deck has a nice range between 2-6 cmc, so you could easily cast it for say
5bbb and bring 4 creatures back from the graveyard. You also can lose life with them as lands. Perfect.
Feed the Swarm is a much welcome card to Rakdos color-pie in giving more ways to get rid of enchantments. It also can kill a creature and the loss in life..hey no pain, no gain.
Now I've removed cards that return Greven to play after removal in the past with
Kaya's Ghostform,
Supernatural Stamina,
Boon of Erebos,
Butcher's Glee,
Undying Evil.
It wasn't because they were not good cards, it's just that I shifted to reanimation cards like
Animate Dead as ways to get back Greven (and others) instead of instant speed recursion.
We have a new one in
Malakir Rebirth but this time it can also be a tapped land. Tapped lands are not exactly where you want to be with Greven, but being such a versatile cards I feel like makes this card worth it. Do I replace a land or a spell? The land count currently of 35 is to make sure you have early land drops, as later on in the game you draw so many cards that land drops are not an issue. So I feel like replacing a land will be fine for how the deck works in general.
Moraug, Fury of Akoum has the potential to be a powerhouse in this deck. Any additional attacks can lead to knocking off another opponent easily.
6 mana is obviously a lot and then you really don't want it to be a creature you sacrifice for the draw however. But we do have reanimation spells like Reanimate to cheat a creature like this into play as well as
Sneak Attack. So I definitely want to at least give Moraug a whirl in this deck.
Kargan Intimidator can give Greven trample, can make a creature unable to block and can also give it 4 power for sacrifice card draw. Between the unable to block and trample, it basically means that opponents will struggle to defend against your attacks.
It also adds a bit to the
Mindblade Render and
Azra Oddsmaker.
Other cards that interested me for Greven are
Kazuul's Fury as another tapped land that can be a Fling as well. However I don't like the concept of sacrificing Greven for any reason, and I don't want
another tapped land.
Song-Mad Treachery is another spell/land card that has some synergy with Greven if you steal a creature and sacrifice. Same as above don't want another tapped land unfortunately.
If there were more instants and sorcery in the deck then
Magmatic Channeler would be great as it could have 4 power for 2 mana, and it also has card advantage ability which exactly what this deck loves. There are 22 instant and sorcery in the deck so perhaps it's close as you can discard a lot of them at end of turn to fill your graveyard.