Bladecoil Serpent
From The Brothers' War set
Bladecoil Serpent
Artifact Creature — Serpent
5/4
When this creature enters, for each
spent to cast it, draw a card.
When this creature enters, for each
spent to cast it, each opponent discards a card.
When this creature enters, for each
spent to cast it, it gets +1/+0 and gains trample and haste until end of turn.