Eversor

Eversor enters the battlefield tapped under the
control of an opponent of your choice, it doesn't
untap during its next untap step.
Double strike, deathtouch, shroud
{3}: Eversor loses shroud until end of turn.
Eversor can't attack or block and can't be
sacrificed. At the beginning of your upkeep, if
Eversor is untapped it deals 1 damage, at random,
to another target creature you control.