Worldfire, Hive Mind, Vampiric Tutor, and Tidal Barracuda

Prerequisites

• Worldfire in hand
• Hive Mind on the battlefield
• Vampiric Tutor in hand
• Tidal Barracuda on the battlefield
• available

Steps

1. Cast Vampiric Tutor by paying
2. Hive Mind triggers, causing each opponent to create a copy of Vampiric Tutor
3. Holding priority, cast Worldfire by paying
4. Hive Mind triggers, causing each opponent to create a copy of Worldfire
5. Resolve each Worldfire on the stack, exiling all permanents, all cards in all hands and graveyards, and setting each player's life total to one
6. Resolve the first opponent's copy of Vampiric Tutor, causing them to search their library for a card, put it on top of their library and lose 2 life
7. The opponent loses the game due to having less than zero life
8. Repeat from step 6 for each remaining opponent

Results

• Each opponent loses the game
• Exile all cards in all hands and graveyards
• Exile all permanents
• Near-infinite lifeloss