Gravolem Tamer

Whenever an Artificer enters the battlefield under your control for the first time each turn, create a 4/4 white and blue Golem artifact creature token with "When this creature attacks, you may blink target nontoken Creature you don't control."
{3}{w/u}: Blink another target creature. (To blink a creature, exile it, then return it to the battlefield at the beginning of the next phase.)