Swans of Bryn Argoll, Seismic Assault, Dakmor Salvage, Ulamog, the Infinite Gyre, and Kozilek, Butcher of Truth

Prerequisites

• Swans of Bryn Argoll on the battlefield
• Seismic Assault on the battlefield
• Dakmor Salvage in hand
• Ulamog, the Infinite Gyre in the library
• Kozilek, Butcher of Truth in the library
• At least one additional land in graveyard or library

Steps

1. Activate Seismic Assault by discarding Dakmor Salvage, targeting Swans of Bryn Argoll
2. When Swans of Bryn Argoll would be dealt damage, it replaces that damage with 2 card draws
3. Replace one of the draws with Dakmor Salvage's dredge 2 ability
4. Repeat until you have either 1 or 0 cards in your library, holding priority on anything that might trigger and continuing the loop
5. Activate Seismic Assault discarding all lands with the exception of Dakmor Salvage targeting your opponent, then based on if you milled Ulamog, Kozilek, or both, follow the instructions below
6. If you milled both Ulamog and Kozilek, resolve the most recent trigger, then repeat from the beginning
7. If you milled Kozilek and drew Ulamog or vice versa, resolve the shuffle trigger then repeat from the beginning
8. If you drew both Ulamog and Kozilek
9. resolve any shuffle triggers left on the stack, then move to the cleanup phase and discard both titans to handsize
10. Resolve one of the shuffle triggers, then repeat from the beginning in response to the other shuffle trigger

Results

• Infinite card draw
• Infinite damage