Traitorous Instinct
Sorcery
Gain control of target creature until end of turn. Untap that creature. Until end of turn, it gets +2/+0 and gains haste.
The horror lurched about like a puppet from a madman's nightmare, squeezing the life from its own kind.
Scott Chou
Modern Masters 2017 (MM3)
• #114Rulings
You may target a creature you already control. You may target a creature that’s already untapped.
(wotc • 2010-06-15)
Rulings
You may target a creature you already control. You may target a creature that’s already untapped.
(wotc • 2010-06-15)