Mishra, Eminent One, and Aetherflux Reservoir

Prerequisites

• Mishra, Eminent One on the battlefield
• Aetherflux Reservoir on the battlefield
• Your life total is at least 51
• You have a way to give lifelink to a creature

Steps

1. At the beginning of your combat phase, Mishra triggers, creating a token copy of Aetherflux Reservoir that is a 4/4 Construct artifact creature named Mishra's Warform with haste
2. Give Mishra's Warform lifelink
3. Activate Mishra's Warform by paying 50 life, dealing 50 damage to any target and causing you to gain 50 life
4. Repeat step 3

Results

• Infinite damage
• Infinite lifegain triggers