Mask of the Jadecrafter

{X}, {T}, Sacrifice this artifact: Create an X/X colorless Golem artifact creature token. Activate only as a sorcery. Unearth {2}{G} ({2}{G}: Return this card from your graveyard to the battlefield. Exile it at the beginning of the next end step or if it would leave the battlefield. Unearth only as a sorcery.)