Heartseeker from Darksteel
Heartseeker from Darksteel

Artifact — Equipment   {4} (CMC:4)

Equipped creature gets +2/+1 and has "{T}, Unattach Heartseeker: Destroy target creature." Equip {5} ({5}: Attach to target creature you control. Equip only as a sorcery. This card enters the battlefield unattached and stays on the battlefield if the creature leaves.)

124 DST • ENMichael Sutfin

Legal in: Modern,Mirrodin Block,Legacy,Vintage,Freeform,Prismatic,Tribal Wars Legacy,Classic,Singleton 100,Commander

Oracle Text (click to copy):

View this MTG card on Gatherer
Heartseeker grants an ability to the equipped creature. The ability can target a creature with protection from artifacts (unless the equipped creature is an artifact creature).
The equipped creature's controller chooses whether or not to activate the activated ability. It doesn't matter who controls Heartseeker.
"Unattach Heartseeker" means just that -- Heartseeker moves off the creature it was equipping and remains on the battlefield.

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