Magic The Gathering Cards of types 'Snake' and 'Elemental'

As an additional cost to cast this spell, you may sacrifice any number of nonland permanents. This spell costs {1} less to cast for each permanent sacrificed this way. Whenever this creature enters or attacks, put a blight counter on it. Then for each blight counter on it, each opponent loses 4 life unless that player sacrifices a nonland permanent of their choice or discards a card.

Whenever an opponent casts a spell with mana value 3 or less, this creature deals 1 damage to that player.