Bulwark Crawler

If a creature enters from any zone other than
your hand put a 1/1 Construct artifact creature token into play.

Unearth {1}{b}({1}{b}: Return this card from
your graveyard to the battlefield. It gains haste. Exile it at the beginning of the next end step or
if it would leave the battlefield. Unearth only as
a sorcery.)