Name:Temporal Aperture
ManaCost:2
Types:Artifact
A:AB$ Shuffle | Cost$ 5 T | SubAbility$ DBReveal | SpellDescription$ Shuffle your library, then reveal the top card. Until end of turn, for as long as that card remains on top of your library, play with the top card of your library revealed and you may play that card without paying its mana cost. (If it has X in its mana cost, X is 0.)
SVar:DBReveal:DB$ Dig | DigNum$ 1 | Reveal$ True | ChangeNum$ All | ChangeValid$ Card | DestinationZone$ Library | LibraryPosition$ 0 | LibraryPosition2$ 0 | RememberChanged$ True | SubAbility$ DBAperture
SVar:DBAperture:DB$ Effect | Name$ Temporal Aperture Effect | StaticAbilities$ STPlay | RememberObjects$ RememberedCard | Triggers$ StillTopCheck | SVars$ ExileEffect | SpellDescription$ Until end of turn, for as long as that card remains on top of your library, play with the top card of your library revealed and you may play that card without paying its mana cost. | SubAbility$ DBCleanup
SVar:DBCleanup:DB$ Cleanup | ClearRemembered$ True
SVar:STPlay:Mode$ Continuous | EffectZone$ Command | Affected$ Card.TopLibrary+YouCtrl+IsRemembered | AffectedZone$ Library | MayPlay$ True | MayPlayWithoutManaCost$ True | MayLookAt$ Player
SVar:StillTopCheck:Mode$ Always | TriggerZones$ Command | IsPresent$ Card.TopLibrary+YouCtrl+IsNotRemembered | PresentZone$ Library | Execute$ ExileEffect | Static$ True
SVar:ExileEffect:DB$ ChangeZone | Defined$ Self | Origin$ Command | Destination$ Exile
SVar:RemAIDeck:True
SVar:Picture:http://www.wizards.com/global/images/magic/general/temporal_aperture.jpg
Oracle:{5}, {T}: Shuffle your library, then reveal the top card. Until end of turn, for as long as that card remains on top of your library, play with the top card of your library revealed and you may play that card without paying its mana cost. (If it has X in its mana cost, X is 0.)