The Mimic

Changeling, Fear (This card is every creature type.)

Imprint —{2}: Exile a creature card from a graveyard.

As long as The Mimic is imprinted, it has the card text
of all cards exiled with it.

{2}{b}, {t}: The Mimic fights target creature you don't control with power or toughness greater than 3.

When this creature leaves the battlefield, exile it, then
cast it as Glitchtrap, The Virus.