Arcbound Reclaimer + Showdown of the Skalds + Bolas's Citadel + Lion's Eye Diamond

Arcbound Reclaimer

Showdown of the Skalds

Bolas's Citadel

Lion's Eye Diamond

How it works

1. Cast Lion's Eye Diamond either from your hand by paying 0 or from the top of your library by paying 0 life.
2. Showdown of the Skalds triggers, putting a +1/+1 counter on Arcbound Reclaimer.
3. Activate Lion's Eye Diamond by discarding your hand and sacrificing it.
4. Activate Arcbound Reclaimer by removing a +1/+1 counter from it, putting Lion's Eye Diamond from your graveyard onto the top of your library.
5. Repeat.

This mesmerizing loop transforms a simple trade of resources into a self-sustaining engine by leveraging the top-deck manipulation of Bolas's Citadel. You continuously deploy Lion's Eye Diamond from the top of your library—paying zero life thanks to the Citadel while Showdown of the Skalds constantly replenishes your ammunition and nurtures your board with +1/+1 counters. Those very same counters provide the exact fuel Arcbound Reclaimer needs to pluck Lion's Eye Diamond right back out of the graveyard and place it back on top of your library for the Citadel to play once more.