Rottenmouth Viper 107 (Bloomburrow)

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.

NM - $10.50
LP - $8.40
MP - $6.30
HP - $4.20
DMG - $2.20