Name:Cloudhoof Kirin
ManaCost:3 U U
Types:Legendary Creature Kirin Spirit
PT:4/4
K:Flying
T:Mode$ SpellCast | ValidCard$ Spirit,Arcane | ValidActivatingPlayer$ You | TriggerZones$ Battlefield | OptionalDecider$ You | Execute$ TrigMill | TriggerDescription$ Whenever you cast a Spirit or Arcane spell, you may have target player put the top X cards of his or her library into his or her graveyard, where X is that spell's converted mana cost.
SVar:TrigMill:AB$Mill | Cost$ 0 | ValidTgts$ Player | TgtPrompt$ Select target player | NumCards$ X | References$ X
SVar:X:TriggerCount$CastSACMC
SVar:Picture:http://www.wizards.com/global/images/magic/general/cloudhoof_kirin.jpg
Oracle:Flying\nWhenever you cast a Spirit or Arcane spell, you may have target player put the top X cards of his or her library into his or her graveyard, where X is that spell's converted mana cost.