Aetherflux Reservoir, and Myr Welder

Prerequisites

• Aetherflux Reservoir in exile
• Myr Welder on the battlefield
• You have a way to give Myr Welder lifelink
• Your life total is at least 51
• Myr Welder does not have summoning sickness

Steps

1. Give Myr Welder lifelink, if needed
2. Activate Myr Welder using Aetherflux Reservoir's ability by paying 50 life, dealing 50 damage to any target and causing you to gain 50 life
3. Repeat step 2

Results

• Infinite damage
• Infinite lifegain triggers