Underworld Breach + Windfall Combos

2 known combos featuring both cards in Commander

Infinite draw triggers for all players Infinite looting for all players Infinite self-discard triggers for all players Near-infinite colored mana Near-infinite Treasure tokens

Combo 1 with Smothering Tithe

Also requires: Smothering Tithe Smothering Tithe
Results: Infinite draw triggers for all players · Infinite looting for all players · Infinite self-discard triggers for all players · Near-infinite colored mana · Near-infinite Treasure tokens
Steps
  1. Cast Windfall from your graveyard for its escape cost by paying {2}{U} and exiling three cards from your graveyard, causing each player to discard at least three cards and draw at least three cards.
  2. Smothering Tithe triggers for each card drawn by your opponents, creating that many Treasure tokens.
  3. Activate three of the Treasure tokens by tapping and sacrificing them, adding {2}{U}.
  4. Repeat.
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Combo 2 with Squandered Resources + Splendid Reclamation

Results: Infinite draw triggers for all players · Infinite looting for all players · Infinite self-discard triggers for all players · Near-infinite landfall triggers · Near-infinite magecraft triggers · Near-infinite storm count
Show steps
  1. Activate Squandered Resources by sacrificing at least seven lands, adding {5}{G}{U}.
  2. Cast Windfall either from your hand by paying {2}{U}, or from your graveyard for its escape cost by paying {2}{U} and exiling three nonland cards except Splendid Reclamation from your graveyard, causing each player to discard their hand and draw cards equal to the greatest number a player discarded this way.
  3. Cast Splendid Reclamation from your graveyard for its escape cost by paying {3}{G} and exiling three nonland cards except Windfall from your graveyard, returning all land cards from your graveyard to the battlefield tapped.
  4. Repeat.
  5. Depending on the number of cards in a player's hand and/or in your graveyard when Windfall resolves, you may be able to omit casting it during an iteration.
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