Arcbound Reclaimer + Showdown of the Skalds + Mishra's Bauble + One with the Multiverse

Arcbound Reclaimer

Showdown of the Skalds

Mishra's Bauble

One with the Multiverse

How it works

1. Cast Mishra's Bauble 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 Mishra's Bauble by tapping and sacrificing it.
4. Activate Arcbound Reclaimer by removing a +1/+1 counter from it, putting Mishra's Bauble from your graveyard onto the top of your library.
5. Repeat.

This looping engine relies on the top-deck manipulation and free casting power of One with the Multiverse to constantly replay Mishra's Bauble from the top of your library for zero mana. Each time you cast the artifact, chapters II and III of Showdown of the Skalds trigger to replenish the +1/+1 counter on Arcbound Reclaimer. This allows Arcbound Reclaimer to endlessly recycle the sacrificed Mishra's Bauble from your graveyard right back to the top of your library, generating an unstoppable storm count and an infinite number of draw triggers for the next upkeep.