Kavu Howler

2, Sacrifice a land: Create two 1/1 red and white Goblin Soldier creature tokens.

Whenever a player casts a blue spell, this creature gets +2/+2 until end of turn.

Destroy two target nonblack creatures unless either one is a color the other isn't. They can't be regenerated.

Haste This creature gets +1/+1 as long as you control a white creature. This creature gets +1/+1 as long as you control a blue creature.

Enchant creature Enchanted creature gets -1/-1 and has "T: Target creature gets -1/-1 until end of turn."

Sacrifice a land: You gain 3 life.

Target creature gets -1/-1 until end of turn.

Target player loses 1 life and you gain 1 life. Draw a card.