Jayne, Foole of the Black Rose

Haste
As long as you're the monarch this creature gains
"{t}: Tap target creature you don't control and
put a mesmerise counter on it." (Creatures with mesmerise counters do not untap in their controllers
untap step and their activated abilities cannot be activated)
"Sir, was this the card you were thinking of?"
—Jayne, Foole of the Black Rose