Wildfire Elemental

Whenever an opponent is dealt noncombat damage, creatures you control get +1/+0 until end of turn.

Growth Cycle

Target creature gets +3/+3 until end of turn. It gets an additional +2/+2 until end of turn for each card named Growth Cycle in your graveyard.

Astral Drift

Whenever you cycle Astral Drift or cycle another card while Astral Drift is on the battlefield, you may exile target creature. If you do, return that card to the battlefield under its owner’s control at the beginning of the next end step.
Cycling (, Discard this card: Draw a card.)

Bladeback Sliver

Hellbent — As long as you have no cards in hand, Sliver creatures you control have “: This creature deals 1 damage to target player or planeswalker.”

Astral Drift

Whenever you cycle Astral Drift or cycle another card while Astral Drift is on the battlefield, you may exile target creature. If you do, return that card to the battlefield under its owner’s control at the beginning of the next end step.
Cycling (, Discard this card: Draw a card.)

The First Sliver

Cascade (When you cast this spell, exile cards from the top of your library until you exile a nonland card that costs less. You may cast it without paying its mana cost. Put the exiled cards on the bottom of your library in a random order.)
Sliver spells you cast have cascade.

Carrion Feeder

Carrion Feeder can’t block.
Sacrifice a creature: Put a +1/+1 counter on Carrion Feeder.

Time Wipe

Return a creature you control to its owner’s hand, then destroy all creatures.

Roalesk, Apex Hybrid

Flying, trample
When Roalesk, Apex Hybrid enters the battlefield, put two +1/+1 counters on another target creature you control.
When Roalesk dies, proliferate, then proliferate again. (Choose any number of permanents and/or players, then give each another counter of each kind already there. Then do it again.)

Time Wipe

Return a creature you control to its owner’s hand, then destroy all creatures.

Challenger Troll

Each creature you control with power 4 or greater can’t be blocked by more than one creature.

Roalesk, Apex Hybrid

Flying, trample
When Roalesk, Apex Hybrid enters the battlefield, put two +1/+1 counters on another target creature you control.
When Roalesk dies, proliferate, then proliferate again. (Choose any number of permanents and/or players, then give each another counter of each kind already there. Then do it again.)

Tyrant’s Scorn

Choose one —
• Destroy target creature with converted mana cost 3 or less.
• Return target creature to its owner’s hand.

Bolt Bend

This spell costs less to cast if you control a creature with power 4 or greater.
Change the target of target spell or ability with a single target.

Time Wipe

Return a creature you control to its owner’s hand, then destroy all creatures.

Forced Landing

Put target creature with flying on the bottom of its owner’s library.

Watery Grave

(: Add or .)
As Watery Grave enters the battlefield, you may pay 2 life. If you don’t, it enters the battlefield tapped.

Overgrown Tomb

(: Add or .)
As Overgrown Tomb enters the battlefield, you may pay 2 life. If you don’t, it enters the battlefield tapped.

Miming Slime

Create an X/X green Ooze creature token, where X is the greatest power among creatures you control.

Domri’s Nodorog

Trample
When Domri’s Nodorog enters the battlefield, you may search your library and/or graveyard for a card named Domri, City Smasher, reveal it, and put it into your hand. If you search your library this way, shuffle it.

Ravager Wurm

Riot (This creature enters the battlefield with your choice of a +1/+1 counter or haste.)
When Ravager Wurm enters the battlefield, choose up to one —
• Ravager Wurm fights target creature you don’t control.
• Destroy target land with an activated ability that isn’t a mana ability.

Skarrgan Hellkite

Riot (This creature enters the battlefield with your choice of a +1/+1 counter or haste.)
Flying
: Skarrgan Hellkite deals 2 damage divided as you choose among one or two targets. Activate this ability only if Skarrgan Hellkite has a +1/+1 counter on it.

Goblin Gathering

Create a number of 1/1 red Goblin creature tokens equal to two plus the number of cards named Goblin Gathering in your graveyard.

Immolation Shaman

Whenever an opponent activates an ability of an artifact, creature, or land that isn’t a mana ability, Immolation Shaman deals 1 damage to that player.
: Immolation Shaman gets +3/+3 and gains menace until end of turn.