Ghyrson Starn, Kelermorph + Gisela, Blade of Goldnight + Sakashima of a Thousand Faces + Harmless Offering

Prerequisites

• You have a way to deal exactly two or three damage to an opponent.
• Sakashima of a Thousand Faces on the battlefield as a copy of Ghyrson Starn.
• You have enough mana to cast Harmless Offering.

Steps

1. 1Cast Harmless Offering by paying its mana cost, giving control of Gisela to an opponent.
2. 2Deal exactly two or three damage to the opponent, which is reduced to one by Gisela, triggering Ghyrson Starn and Sakashima of a Thousand Faces.
3. 3Resolve the Ghyrson Starn trigger, dealing 1 damage to the opponent.
4. 4Sakashima of a Thousand Faces triggers, dealing 1 damage to the opponent.
5. 5Ghyrson Starn triggers, dealing 1 damage to the opponent.
6. 6Repeat from step 4.

Effects

• Infinite damage to one opponent