Bladecoil Serpent {X}{6}
Artifact Creature — Serpent
When this creature enters, for each {U}{U} spent to cast it, draw a card.
When this creature enters, for each {B}{B} spent to cast it, each opponent discards a card.
When this creature enters, for each {R}{R} spent to cast it, it gets +1/+0 and gains trample and haste until end of turn.
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Cards that do something similar expected a card that isn't here?
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Rafter Demon 86%
$0.07#25244
"When this creature enters, if its spectacle cost was paid, each opponent discards a card."