Name:Battlegate Mimic
ManaCost:1 RW
Types:Creature Shapeshifter
PT:2/1
T:Mode$ SpellCast | ValidCard$ Card.Red+White | ValidActivatingPlayer$ You | TriggerZones$ Battlefield | Execute$ TrigAnimate | TriggerDescription$ Whenever you cast a spell that's both red and white, CARDNAME has base power and toughness 4/2 until end of turn and gains first strike until end of turn.
SVar:TrigAnimate:AB$Animate | Cost$ 0 | Defined$ Self | Power$ 4 | Toughness$ 2 | Keywords$ First Strike
SVar:BuffedBy:Card.Red+White
SVar:Picture:http://www.wizards.com/global/images/magic/general/battlegate_mimic.jpg
Oracle:Whenever you cast a spell that's both red and white, Battlegate Mimic has base power and toughness 4/2 until end of turn and gains first strike until end of turn.