Khrusia, Pseudorealist

Flying, protection from creatures
Whenever an opponent casts an instant or
sorcery spell targeting you or a creature you
control, you may pay {3}. If you do, counter
that spell, then each player creates a 1/1 colorless
Shapeshifter creature token with Changeling.
{w}{u}{b}{r}: Each creature target player controls
becomes a copy of target nonlegendary creature
until end of turn.