Mercurio, Masterful Mimic

Provoke
Ward —Reveal your hand and untap Mercurio, Masterful Mimic.
Whenever Mercurio, Masterful Mimic blocks or becomes blocked by a creature, you may flip a
coin. If the result is heads, Mercurio becomes a
copy of that creature until end of turn. If the
result is tails, that creature becomes a copy of Mercurio until end of turn.