Arcbound Reclaimer + Showdown of the Skalds + Delif's Cone + Future Sight

Arcbound Reclaimer

Showdown of the Skalds

Delif's Cone

Future Sight

How it works

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

This clever loop turns the zero-cost artifact Delif's Cone into a perpetual motion machine by leveraging Future Sight to cast it repeatedly from the top of your library. Each time you cast the Cone, Showdown of the Skalds triggers its second and third chapters to place a +1/+1 counter right back onto Arcbound Reclaimer. That counter is immediately spent to fuel Arcbound Reclaimer's activated ability, recycling Delif's Cone from the graveyard back to the top of your library to begin the cycle anew.