Beni, Perpetual Traitor

Beni, Perpetual Traitor can't attack or block
unless you control another creature.
When Beni Gabor enters the battlefield,
you may draw a card and then discard a card.
{2}{r}:Exile Beni, Perpetual Traitor then return
him to the battlefield tapped under his owner's
control at the beginning of the next end step.