Xeria, Tundra Sparkmage

Whenever Xeria, Tundra Sparkmage enters the battlefield, tap all artifacts or creatures target
player controls. Xeria deals damage equal to the
number of permanents tapped this way to
another target player.
{4}{u}{u},{t}: Exile Xeria, then return it to the battlefield under its owner's control tapped at
the beginning of the next end step.