Captain Sisay, Mind Over Matter, and Kozilek, Butcher of Truth

Prerequisites

• Captain Sisay on the battlefield
• Mind Over Matter on the battlefield
• Kozilek, Butcher of Truth in the library
• Captain Sisay does not have summoning sickness

Steps

1. Activate Captain Sisay by tapping it, searching your library for Kozilek and putting it into your hand
2. Activate Mind over Matter by discarding Kozilek, targeting Captain Sisay
3. Kozilek triggers, shuffling your graveyard into your library
4. Resolve the Mind over Matter ability, untapping Captain Sisay
5. Repeat

Results

• Infinite self-discard triggers