MANAHIVE

Equivalent cards to Tomb of Annihilation (Dungeon, colorless, similar mechanics):
1. Lost Mine of Phandelver — Also a colorless Dungeon with modular, punishing room choices.
2. Dungeon of the Mad Mage — Another colorless Dungeon, offers incremental rewards/choices.
3. The Undercity — Colorless Dungeon with branching paths and punish/reward mechanics.

Reason: All share the Dungeon type, are colorless, and have branching path mechanics like Tomb of Annihilation. No non-Dungeon cards are functionally equivalent due to the unique Dungeon card type.