Bladecoil Serpent 
Artifact Creature — Serpent
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.
Legality
standardNOT LEGALpioneerLEGALmodernLEGALlegacyLEGALvintageLEGALcommanderLEGAL