Kaervek the Merciless

Changeling (This card is every creature type.) Whenever an opponent casts a spell, you may put a +1/+1 counter on this creature.

2, T: Flip a coin. If you win the flip, sacrifice this artifact and draw three cards.

T: Add CCC. 3, T, Sacrifice this artifact: Draw three cards.

Flash When this creature enters, prevent all damage that would be dealt to artifact creatures this turn.

Whenever this creature attacks, each opponent loses 2 life.

Creatures you control have haste. Sacrifice this enchantment: Target creature gets +2/+2 until end of turn.

Create two 1/1 red Goblin creature tokens.

(T: Add G.)