Lithlek Stalker

Escape {b/g}{b/g} ({b/g}{b/g}: Exile this creature. Return it to the battlefield tapped under your control at the beginning of the next end step.)
Lithlek Stalker can block creatures with intimidate.
When Lithlek Stalker enters the battlefield, you may pay {b/g}{b/g}. If you do, Lithlek Stalker fights target creature.