Ghyrson Starn, Kelermorph + Gisela, Blade of Goldnight + Helm of the Host + Switcheroo

Ghyrson Starn, Kelermorph

Gisela, Blade of Goldnight

Helm of the Host

Switcheroo

How it works

1. Cast Switcheroo by paying its mana cost, giving control of Gisela to an opponent.
2. At the beginning of your combat phase, Helm of the Host triggers, creating a token copy of Ghyrson Starn that isn't legendary.
3. Deal exactly two or three damage to the opponent, which is reduced to one by Gisela, triggering Ghyrson Starn and the Ghyrson Starn token.
4. Resolve the nontoken Ghyrson Starn's trigger, dealing 1 damage to the opponent.
5. The token Ghyrson Starn triggers, dealing 1 damage to the opponent.
6. The nontoken Ghyrson Starn triggers, dealing 1 damage to the opponent.
7. Repeat from step 5.