Otherworldly Seduction

As an additional cost to cast this spell, convey
three cards from your hand. If you control three
or more creatures with Coven, convey one card
instead.(Conveyed spells can be cast by any player
using mana as though it were mana of any colour.)
Gain control of target creature an opponent
controls. It gains coven.
"The allure of the unknown can drive a man into a
hag's embrace." - Mornill Proverb