Cast Approach of the Second Sun by paying {6}{W}, causing you to gain seven life and put Approach of the Second Sun into your library seventh from the top.
Cast Windfall by paying {2}{U}, causing each player to discard their hand and draw at least seven cards.
Cast Approach of the Second Sun by paying {6}{W}, causing you to win the game.

Win the game

Approach of the Second Sun

Windfall

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.
Smothering Tithe triggers for each card drawn by your opponents, creating that many Treasure tokens.
Activate three of the Treasure tokens by tapping and sacrificing them, adding {2}{U}.
Repeat.

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

Smothering Tithe

Underworld Breach

Cast Windfall by paying {2}{U}, causing each player to discard their hand and each opponent to draw cards equal to the greatest number of cards discarded this way, and you to draw twice that number due to Teferi's Ageless Insight.
Psychosis Crawler triggers for each card you draw, and Scrawling Crawler triggers for each card opponents draw.
Resolve the Psychosis Crawler triggers, causing each opponent to lose 1 life for each card you drew.
Resolve the Scrawling Crawler triggers, causing each opponent to lose 1 life for each card they drew.

Near-infinite lifeloss

Psychosis Crawler

Scrawling Crawler

Teferi's Ageless Insight

Cast Windfall by paying {2}{U}, causing each player to discard their hand and then draw a number of cards equal to the greatest number of cards a player discarded this way.
Nekusar triggers for each card drawn this way, giving each opponent a poison counter for each card they drew.
Each opponent loses the game due to having ten or more poison counters

Each opponent loses the game

Each opponent gets 10 poison counters

Phyresis

Nekusar, the Mindrazer

Activate Squandered Resources by sacrificing at least seven lands, adding {5}{G}{U}.
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.
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.
Repeat.
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.

Near-infinite landfall triggers

Near-infinite magecraft triggers

Near-infinite storm count

Squandered Resources

Splendid Reclamation

Cast Pure Intentions by paying {W}.
Hive Mind triggers, causing each opponent to create a copy of Pure Intentions.
Resolve all Pure Intentions.
Cast Windfall by paying {2}{U}.
Hive Mind triggers, causing each opponent to create a copy of Windfall.
Resolve the first opponent's copy of Windfall, causing each player to discard their hand and draw cards equal to the greatest number of cards discarded this way.
Each player who did not control Windfall's Pure Intentions triggers.
Resolve all Pure Intentions, causing you and the opponents to return to their hand all cards discarded by Windfall.
Repeat from step 6 for each remaining Windfall until you either draw from an empty library, causing you to win the game due to Laboratory Maniac, or until your opponents lose the game due to drawing from an empty library.

Near-infinite card draw for all players

Near-infinite draw triggers for all players

Near-infinite self-discard triggers for all players

Hive Mind

Pure Intentions

Laboratory Maniac

Cast Pure Intentions by paying {W}.
Hive Mind triggers, causing each opponent to create a copy of Pure Intentions.
Resolve all Pure Intentions.
Cast Windfall by paying {2}{U}.
Hive Mind triggers, causing each opponent to create a copy of Windfall.
Resolve the first opponent's copy of Windfall, causing each player to discard their hand and draw cards equal to the greatest number of cards discarded this way.
Each player who did not control Windfall's Pure Intentions triggers.
Resolve all Pure Intentions, causing you and the opponents to return to their hand all cards discarded by Windfall.
Repeat from step 6 for each remaining Windfall until you either draw from an empty library, causing you to win the game due to Jace, or until your opponents lose the game due to drawing from an empty library.

Jace, Wielder of Mysteries

Combos with "Windfall"