Karn, Silver Golem + Salvaging Station + Seat of the Synod

Karn, Silver Golem

Salvaging Station

Seat of the Synod

How it works

1. Activate Seat of the Synod by tapping it, adding .
2. Activate Karn by paying 1, causing Seat of the Synod to become a creature until end of turn.
3. Seat of the Synod dies as a state-based action due to having 0 toughness, triggering Salvaging Station, untapping Salvaging Station.
4. Activate Salvaging Station by tapping it, returning Seat of the Synod from your graveyard to the battlefield.
5. Repeat.

This ingenious loop turns a simple land into a self-sacrificing engine using Karn, Silver Golem's ability to animate noncreature artifacts like Seat of the Synod into creatures with zero toughness. The moment Seat of the Synod hits the battlefield and is animated, state-based actions immediately put it into the graveyard, which triggers Salvaging Station's second ability to untap itself. You can then tap Salvaging Station to return that very same Seat of the Synod straight back to the battlefield, ready to be animated all over again for an endless cascade of triggers.