Toph, the First Metalbender + Retreat to Emeria + Haru, Hidden Talent + Welding Jar

Toph, the First Metalbender

Retreat to Emeria

Haru, Hidden Talent

Welding Jar

How it works

1. Cast Welding Jar by paying its mana cost.
2. When Welding Jar enters, Retreat to Emeria triggers, creating a 1/1 Kor Ally creature token.
3. When the Kor Ally enters, Haru triggers, earthbending Welding Jar.
4. Activate Welding Jar by sacrificing it.
5. Haru triggers, returning Welding Jar from your graveyard to the battlefield.
6. Repeat steps 2 and 3 once.
7. Resolve the Welding Jar ability from step 4.
8. Repeat from step 4.