Hidden Cactuar

Defender, Haste
{3}{g}, {t}: Put a Confusion Status Effect on target creature.
At the end of each combat, Hidden Cactuar deals
10 damage to target creature that dealt damage to
it during this combat.
At the beginning of your upkeep, exile Hidden
Cactuar and return to the battlefield under your
control an exiled card you own named Cactuar.