BB-2, Junkyard Genius

Skulk, swampwalking

When Junkyard Genius enters the battlefield or
deals combat damage to a player, surveil three.

Whenever a permanent is put into a graveyard from
the battlefield, you may exile up to two creature or
artifact cards from your graveyard. If you do, create
that many 2/1 black Droid Zombie artifact creature
tokens with menace.