Shalai and Hallar + Archangel of Thune

Prerequisites

• You have a way to give Shalai and Hallar lifelink.
• You have a way to put a +1/+1 counter on a creature you control.

Steps

1. 1Put a +1/+1 counter on a creature you control.
2. 2Shalai and Hallar triggers, dealing 1 damage to an opponent and causing you to gain one life.
3. 3Archangel of Thune triggers, putting a +1/+1 counter on each creature you control.
4. 4Shalai and Hallar triggers for each creature who had a counter placed on it this way.
5. 5Resolve the first trigger, dealing 1 damage to an opponent and causing you to gain one life.
6. 6Repeat from step 3.

Effects

• Infinite +1/+1 counters on creatures you control
• Infinite damage
• Infinite lifegain
• Infinite lifegain triggers