Ganax, Astral Hunter, Haunted One, Ion Storm, Relic of Legends, and Carrion Feeder

Prerequisites

• Ganax, Astral Hunter on the battlefield
• Haunted One on the battlefield
• Ion Storm on the battlefield
• Relic of Legends on the battlefield
• Carrion Feeder on the battlefield
• Ganax does not have a +1/+1 counter on it

Steps

1. Activate Relic of Legends's first ability by tapping it, adding
2. Activate Relic of Legends's second ability by tapping Ganax
3. Ganax triggers, causing all Dragons you control to get +2/+0 and undying until end of turn
4. Resolve the Relic of Legends ability, untapping it
5. Activate Carrion Feeder by sacrificing Ganax
6. When Ganax dies, its undying ability triggers, returning itself to the battlefield from your graveyard with a +1/+1 counter on it
7. When Ganax enters the battlefield, it triggers, creating a Treasure artifact token
8. Resolve the Carrion Feeder ability from step 5, putting a +1/+1 counter on it
9. Activate the Treasure by tapping and sacrificing it, adding
10. Activate Ion Storm by paying and removing a +1/+1 counter from Ganax, dealing two damage to any target
11. Repeat

Results

• Infinite +1/+1 counters on Carrion Feeder
• Infinite damage
• Infinite death triggers
• Infinite ETB
• Infinite LTB
• Infinitely powerful Dragons until end of turn except Ganax
• Infinite sacrifice triggers
• Infinite scry 1