This spell can't be countered.

Bloodthirst X (This creature enters the battlefield with X +1/+1 counters on it, where X is the damage dealt to your opponents this turn.)

Protection from instants

, Sacrifice a creature: Target creature gets -1/-1 until end of turn.

You may have creatures you control assign their combat damage this turn as though they weren't blocked.

Replicate (When you cast this spell, copy it for each time you paid its replicate cost. You may choose new targets for the copies.)

Pyromatics deals 1 damage to any target.

Bloodthirst 1 (If an opponent was dealt damage this turn, this creature enters the battlefield with a +1/+1 counter on it.)

, : Attacking creatures get +X/+0 until end of turn, where X is Rabble-Rouser's power.

, : Target creature gains swampwalk until end of turn. (It can't be blocked as long as defending player controls a Swamp.)

: Regenerate Restless Bones.

At the beginning of your upkeep, Rumbling Slum deals 1 damage to each player.

, Sacrifice a creature: Destroy each creature with the same mana value as the sacrificed creature.

Bloodthirst 2 (If an opponent was dealt damage this turn, this creature enters the battlefield with two +1/+1 counters on it.)

Trample

, Sacrifice a creature: Scorched Rusalka deals 1 damage to target player or planeswalker.

Enchant creature

Enchanted creature has first strike.

: Enchanted creature gets +2/+2 until end of turn.

Flying

When Shrieking Grotesque enters the battlefield, if was spent to cast it, target player discards a card.

Hexproof (This creature can't be the target of spells or abilities your opponents control.)

Silhana Ledgewalker can't be blocked except by creatures with flying.

Enchant creature

Enchanted creature has ": This creature deals damage equal to its power to target attacking or blocking creature."

Bloodthirst 3 (If an opponent was dealt damage this turn, this creature enters the battlefield with three +1/+1 counters on it.)

Flying

: Return Skarrgan Firebird from your graveyard to your hand. Activate only if an opponent was dealt damage this turn.

Bloodthirst 3 (If an opponent was dealt damage this turn, this creature enters the battlefield with three +1/+1 counters on it.)

, Sacrifice Skarrgan Skybreaker: It deals damage equal to its power to any target.

Flying

When Sky Swallower enters the battlefield, target opponent gains control of all other permanents you control.

Whenever Smogsteed Rider attacks, each other attacking creature gains fear until end of turn. (They can't be blocked except by artifact creatures and/or black creatures.)

Whenever an opponent casts a spell, that player sacrifices a permanent unless they pay .

(: Add or .)

As Steam Vents enters the battlefield, you may pay 2 life. If you don't, it enters the battlefield tapped.

Flip a coin. If you win the flip, take an extra turn after this one.

Create X 1/1 white Pegasus creature tokens with flying, where X is your life total.

Sacrifice three white creatures: Exile target creature.

Whenever another black creature you control dies, create a 1/1 white Spirit creature token with flying.

Whenever you cast a blue spell, target creature gains flying until end of turn.

Whenever you cast a red spell, Tibor and Lumia deals 1 damage to each creature without flying.

Untap all creatures you control.

Draw a card.

Replicate (When you cast this spell, copy it for each time you paid its replicate cost.)

Draw a card.

Replicate (When you cast this spell, copy it for each time you paid its replicate cost. You may choose new targets for the copies.)

Return target creature to its owner's hand.

Defender

Whenever Vertigo Spawn blocks a creature, tap that creature. That creature doesn't untap during its controller's next untap step.

( can be paid with either or .)

Sacrifice Wild Cantor: Add one mana of any color.

Whenever you cast a spell, you may put two +1/+1 counters on Witch-Maw Nephilim.

Whenever Witch-Maw Nephilim attacks, it gains trample until end of turn if its power is 10 or greater.

This spell can't be countered.

Destroy target artifact or land.

Whenever Yore-Tiller Nephilim attacks, return target creature card from your graveyard to the battlefield tapped and attacking.