Captain Rex Nebula, Aetherflux Reservoir, and Basilisk Collar

Prerequisites

• Captain Rex Nebula on the battlefield
• Aetherflux Reservoir on the battlefield
• Basilisk Collar on the battlefield
• Your life total is at least 51
• You have a way to give Aetherflux Reservoir lifelink
• available

Steps

1. At the beginning of your combat phase, Captain Rex Nebula triggers, causing Aetherflux Reservoir to become a Vehicle artifact with crew 2
2. Activate Aetherflux Reservoir's crew ability by tapping Captain Rex Nebula, causing Aetherflux Reservoir to become an artifact creature until end of turn
3. Give Aetherflux Reservoir lifelink
4. Activate Aetherflux Reservoir by paying 50 life, dealing 50 damage to any target and causing you to gain 50 life
5. Aetherflux Reservoir triggers
6. Holding priority, repeat from step 4

Results

• Infinite lifegain triggers
• Infinite damage
• Infinite dice roll