All Will Be One, Vraska, Swarm's Eminence, Opalescence, and Archetype of Finality

Prerequisites

• All Will Be One on the battlefield
• Vraska, Swarm's Eminence on the battlefield
• Opalescence on the battlefield
• Archetype of Finality on the battlefield
• You have a way to place a counter on a permanent or player

Steps

1. Place a counter on a permanent or player
2. All Will Be One triggers, dealing 1 damage to an opponent
3. Vraska triggers, putting a +1/+1 counter on All Will Be One
4. Repeat from step 2

Results

• Infinite +1/+1 counters on All Will Be One
• Infinite damage