Darksteel Forge [Darksteel] Magic Origins Prerelease Promos put an age counter on

put an age counter on this permanent

Set: Arabian Nights Type: Artifact Rarity: Rare Cost: {10} {X}

Rishada is the gateway to free trade—but the key will cost you

and only the dead and vile remain

Set: Battlebond Type: Artifact Rarity: Mythic Cost: {6} All permanents are artifacts in addition to their other types

Darksteel Forge [Darksteel] Magic Origins Prerelease Promos put an age counter onSet: Darksteel Type: Artifact Rarity: Rare Cost: {9} Artifacts you control have indestructible. (Effects that say "destroy" don't destroy them. Artifact creatures with indestructible can't be destroyed by damage.) "Did it have this shape upon Mirrodin's creation, or did some inconceivable force shape the unshapable?" Pontifex, elder researcher