Azrath, the Ashen One

Flying, deathtouch, annihilator 5
—Whenever an opponent casts a spell, if Azrath,
the Ashen One is in your hand, you may pay {2}{b}{r}{g/u}. If you do, flip three coins. For each
flip that is heads, choose one option that hasn't
been chosen, at random —
• Azrath may be casted as though it has flash.
• Creatures you control get ward, exile a
permanent, until end of turn.
• You may pay {0} to cast Azrath this turn.