Mirro, Shimmering Mimic

When you cast this spell, exile up to three target creatures and/or planeswalkers.
Hexproof
{u}{b}: Choose target creature or planewalker card
in exile. As long as that card remains exiled, cards
you control named Mirro, Shimmering Mimic
gain all abilities of that card. (Those abilities are
present on a card named Mirro, Shimmering
Mimic in any zone.)