Name:Trial of Knowledge ManaCost:3 U Types:Enchantment T:Mode$ ChangesZone | Origin$ Any | Destination$ Battlefield | ValidCard$ Card.Self | Execute$ TrigDraw | TriggerDescription$ When CARDNAME enters the battlefield, draw three cards, then discard a card. SVar:TrigDraw:AB$Draw | Cost$ 0 | Defined$ You | NumCards$ 3 | SubAbility$ DBDiscard SVar:DBDiscard:DB$Discard | Defined$ You | NumCards$ 1 | Mode$ TgtChoose T:Mode$ ChangesZone | Origin$ Any | Destination$ Battlefield | TriggerZones$ Battlefield | ValidCard$ Cartouche.YouCtrl | Execute$ TrigReturn | TriggerDescription$ When a Cartouche enters the battlefield under your control, return CARDNAME to its owner's hand. SVar:TrigReturn:AB$ChangeZone | Cost$ 0 | Origin$ Battlefield | Destination$ Hand | Defined$ Self SVar:PlayMain1:TRUE SVar:Picture:http://www.wizards.com/global/images/magic/general/trial_of_knowledge.jpg Oracle:When Trial of Knowledge enters the battlefield, draw three cards, then discard a card.\nWhen a Cartouche enters the battlefield under your control, return Trial of Knowledge to its owner's hand.