Master of Masters

When Master of Masters enters the battlefield,
draw a card. Whenever you cast an instant
or sorcery spell, you may tap or untap target
creature.
Arcanist (You may cast this card as though it had
flash if you pay {3}{u}{b}. If you do, it enters the battlefield with an additional +1/+1 counter or gains
Ward {2}.)
"Knowledge is both power and madness."