Sacrifice a creature: Scry 1. (Look at the top card of your library. You may put that card on the bottom of your library.)

Counter target spell.

({T}: Add {W}.)

({T}: Add {U}.)

({T}: Add {B}.)

({T}: Add {R}.)

({T}: Add {G}.)

Bloodghast can't block.

Bloodghast has haste as long as an opponent has 10 or less life.

Landfall — Whenever a land enters the battlefield under your control, you may return Bloodghast from your graveyard to the battlefield.

When Golgari Thug dies, put target creature card from your graveyard on top of your library.

Dredge 4 (If you would draw a card, you may mill four cards instead. If you do, return this card from your graveyard to your hand.)

Return up to three target land cards from your graveyard to your hand.

Dredge 3 (If you would draw a card, you may mill three cards instead. If you do, return this card from your graveyard to your hand.)

({2/W} can be paid with any two mana or with {W}. This card's mana value is 10.)

Other Scarecrow creatures you control get +1/+1.

Whenever another Scarecrow enters the battlefield under your control, destroy target permanent.

{3}: Search your library for a Sliver card, reveal that card, put it into your hand, then shuffle.

{3}: Gain control of target Sliver. (This effect lasts indefinitely.)

Eminence — As long as The Ur-Dragon is in the command zone or on the battlefield, other Dragon spells you cast cost {1} less to cast.

Flying

Whenever one or more Dragons you control attack, draw that many cards, then you may put a permanent card from your hand onto the battlefield.

At the beginning of your upkeep, you lose 1 life and create a 1/1 black Faerie Rogue creature token with flying.

Kicker {R} (You may pay an additional {R} as you cast this spell.)

When Goblin Bushwhacker enters the battlefield, if it was kicked, creatures you control get +1/+0 and gain haste until end of turn.

Goblin Sharpshooter doesn't untap during your untap step.

Whenever a creature dies, untap Goblin Sharpshooter.

{T}: Goblin Sharpshooter deals 1 damage to any target.

Other Goblins get +1/+1 and have mountainwalk.

Whenever Goblin Lackey deals damage to a player, you may put a Goblin permanent card from your hand onto the battlefield.

Protection from blue (This creature can't be blocked, targeted, dealt damage, or enchanted by anything blue.)

Whenever Goblin Piledriver attacks, it gets +2/+0 until end of turn for each other attacking Goblin.

Whenever Leonin Warleader attacks, create two 1/1 white Cat creature tokens with lifelink that are tapped and attacking.

Other Cats you control get +1/+1 and have lifelink.

When Regal Caracal enters the battlefield, create two 1/1 white Cat creature tokens with lifelink.

Reach

Whenever Qasali Slingers or another Cat enters the battlefield under your control, you may destroy target artifact or enchantment.

Eminence — At the beginning of combat on your turn, if Arahbo, Roar of the World is in the command zone or on the battlefield, another target Cat you control gets +3/+3 until end of turn.

Whenever another Cat you control attacks, you may pay {1}{G}{W}. If you do, it gains trample and gets +X/+X until end of turn, where X is its power.

First strike

Whenever Mirri, Weatherlight Duelist attacks, each opponent can't block with more than one creature this combat.

As long as Mirri, Weatherlight Duelist is tapped, no more than one creature can attack you each combat.

Draw a card. Scry 2.

Draw a card. Scry 2.

Draw a card. Scry 2.

Draw a card. Scry 2.

Ninjutsu {3}{B}{B} ({3}{B}{B}, Return an unblocked attacker you control to hand: Put this card onto the battlefield from your hand tapped and attacking.)

Whenever Ink-Eyes, Servant of Oni deals combat damage to a player, you may put target creature card from that player's graveyard onto the battlefield under your control.

{1}{B}: Regenerate Ink-Eyes.

All Rats have fear.

{T}, Sacrifice a Rat: Create X 1/1 black Rat creature tokens, where X is the number of Rats you control.

Pack Rat's power and toughness are each equal to the number of Rats you control.

{2}{B}, Discard a card: Create a token that's a copy of Pack Rat.

Rat Colony gets +1/+0 for each other Rat you control.

A deck can have any number of cards named Rat Colony.

First strike

Noncreature spells cost {1} more to cast.

First strike

Noncreature spells cost {1} more to cast.

First strike

Noncreature spells cost {1} more to cast.

First strike

Noncreature spells cost {1} more to cast.

Counter target noncreature spell unless its controller pays {2}.

Whenever Blood Artist or another creature dies, target player loses 1 life and you gain 1 life.

When Eternal Witness enters the battlefield, you may return target card from your graveyard to your hand.

As Pithing Needle enters the battlefield, choose a card name.

Activated abilities of sources with the chosen name can't be activated unless they're mana abilities.

{T}: Add {C}.

{1}: Inkmoth Nexus becomes a 1/1 Phyrexian Blinkmoth artifact creature with flying and infect until end of turn. It's still a land. (It deals damage to creatures in the form of -1/-1 counters and to players in the form of poison counters.)

({T}: Add {W}.)

({T}: Add {U}.)

({T}: Add {B}.)

({T}: Add {R}.)

({T}: Add {G}.)

{T}: Search your library for a legendary card, reveal that card, put it into your hand, then shuffle.

Whenever another creature you control dies, you get an experience counter.

At the beginning of your end step, choose target creature card in your graveyard. If that card's mana value is less than or equal to the number of experience counters you have, return it to the battlefield. Otherwise, put it into your hand.