Name:Diviner's Lockbox
ManaCost:4
Types:Artifact
A:AB$ NameCard | Cost$ 1 T | Defined$ You | SubAbility$ DBReveal | SorcerySpeed$ True | SpellDescription$ Choose a card name, then reveal the top card of your library. If that card has the chosen name, sacrifice CARDNAME and draw three cards. Activate only as a sorcery.
SVar:DBReveal:DB$ PeekAndReveal | RememberRevealed$ True | SubAbility$ DBSac
SVar:DBSac:DB$ Sacrifice | SacValid$ Self | ConditionDefined$ Remembered | ConditionPresent$ Card.NamedCard | ConditionCompare$ GE1 | SubAbility$ DBDraw
SVar:DBDraw:DB$ Draw | NumCards$ 3 | ConditionDefined$ Remembered | ConditionPresent$ Card.NamedCard | ConditionCompare$ GE1 | SubAbility$ DBCleanup
SVar:DBCleanup:DB$ Cleanup | ClearRemembered$ True
AI:RemoveDeck:All
Oracle:{1}, {T}: Choose a card name, then reveal the top card of your library. If that card has the chosen name, sacrifice Diviner's Lockbox and draw three cards. Activate only as a sorcery.