Prevent all combat damage that would be dealt this turn.

Dark Ritual

Fungusaur

Whenever Fungusaur is dealt damage, put a +1/+1 counter on it.

Birds of Paradise

Hypnotic Specter

Flying
Whenever Hypnotic Specter deals damage to an opponent, that player discards a card at random.

Sol Ring

Pestilence

At the beginning of the end step, if no creatures are on the battlefield, sacrifice Pestilence.
{B}: Pestilence deals 1 damage to each creature and each player.