Aragorn, the Uniter + Cloudstone Curio + Resolute Reinforcements + Phyrexian Altar

Aragorn, the Uniter

Cloudstone Curio

Resolute Reinforcements

Phyrexian Altar

How it works

1. Cast Resolute Reinforcements by paying 1.
2. Aragorn's first ability triggers, creating a 1/1 Human Soldier creature token.
3. When the Human Soldier enters the battlefield, Cloudstone Curio triggers, returning nothing to your hand from the battlefield.
4. When Resolute Reinforcements enters the battlefield, it and Cloudstone Curio trigger.
5. Resolve the Cloudstone Curio trigger, choosing to return nothing to your hand from the battlefield.
6. Resolve the Resolute Reinforcements trigger, creating a 1/1 Soldier creature token.
7. When the Soldier enters the battlefield, Cloudstone Curio triggers, returning Resolute Reinforcements to your hand from the battlefield.
8. Activate Phyrexian Altar twice by sacrificing the Soldiers, adding 1.
9. Repeat.