Treasure Vault

Pinnacle Affinity can use an untapped artifact land and Saga target as a low-copy tool, though it is less immediately useful than Tormod's Crypt.

Could be wrong if Color demands and whether Urza's Saga tutoring justifies a colorless land slot will determine adoption.

Wasteland and stringent colored mana punish it heavily; unlike Pithing Needle, it has no immediate utility outside narrow artifact shells.

Could be wrong if A resilient artifact shell could exploit its artifact-land status, but Wasteland may make that land slot untenable.

Artifact decks value a land-slot artifact that can later fix mana; unlike Commander's Sphere, it neither ramps nor draws.

Could be wrong if Artifact-land recursion or Treasure payoffs could make the sacrifice mode more relevant than its poor raw rate.

Mostly a colorless land; converting mana and itself into Treasures is inefficient, so it is filler absent artifact or Treasure payoffs.

Could be wrong if Unknown fixing, color requirements, and artifact/Treasure payoffs make its land-slot cost difficult to judge.