What does Bladecoil Serpent do?
user
When Bladecoil Serpent enters, for each {U}{U} spent to cast it, draw a card.\nWhen Bladecoil Serpent enters, for each {B}{B} spent to cast it, each opponent discards a card.\nWhen Bladecoil Serpent enters, for each {R}{R} spent to cast it, it gets +1/+0 and gains trample and haste until end of turn.
assistant