Eventide

Chroma — {2}, Sacrifice a creature: Fiery Bombardment deals damage to any target equal to the number of red mana symbols in the sacrificed creature...

Chaotic Backlash deals damage to target player equal to twice the number of white and/or blue permanents they control.

First strike Belligerent Hatchling enters the battlefield with four -1/-1 counters on it. Whenever you cast a red spell, remove a -1/-1 counter fro...

Creatures your opponents control get -1/-0 until end of turn if {U} was spent to cast this spell, and creatures you control get +1/+0 until end of ...

Shrewd Hatchling enters the battlefield with four -1/-1 counters on it. {U/R}: Target creature can't block Shrewd Hatchling this turn. Whenever y...