Eye of the Storm, Hive Mind, Endless Swarm, and Crovax, Ascendant Hero

Prerequisites

• Eye of the Storm on the battlefield
• Hive Mind on the battlefield
• Endless Swarm in hand
• Crovax, Ascendant Hero on the battlefield
• available

Steps

1. Cast Endless Swarm by paying
2. Eye of the Storm and Hive Mind trigger
3. Resolve the Eye of the Storm trigger, exiling Endless Swarm, and then copying each instant and sorcery card exiled with Eye of the Storm, and allowing you to cast the copies without paying their mana costs
4. Choose not to cast the copy of Endless Swarm as permitted by Eye of the Storm
5. Resolve the Hive Mind trigger from step 2, causing each opponent to copy Endless Swarm
6. Resolve the first opponent's copy of Endless Swarm, causing them to create a 1/1 Snake creature token for each card in their hand, and then be unable to cast spells for the rest of the game
7. The Snakes enter the battlefield and die as a state-based action due to having 0 toughness
8. Repeat from step 6 for each remaining Endless Swarm copy
9. At the beginning of each opponent's upkeep, their copy of Endless Swarm triggers, copying itself
10. Resolve the copy of Endless Swarm, causing the opponent to create a 1/1 Snake creature token for each card in their hand
11. The Snakes enter the battlefield and die as a state-based action due to having 0 toughness
12. Repeat from step 9

Results

• Opponents cannot cast spells