Arcbound Reclaimer + Showdown of the Skalds + Urza's Bauble + Elsha of the Infinite

Arcbound Reclaimer

Showdown of the Skalds

Urza's Bauble

Elsha of the Infinite

How it works

1. Cast Urza's Bauble either from your hand or from the top of your library by paying 0
2. Showdown of the Skalds and Elsha's prowess ability trigger.
3. Resolve the Showdown of the Skalds trigger, putting a +1/+1 counter on Arcbound Reclaimer.
4. Resolve the Elsha trigger, giving it +1/+1 until end of turn.
5. Activate Urza's Bauble by tapping and sacrificing it.
6. Activate Arcbound Reclaimer by removing a +1/+1 counter from it, putting Urza's Bauble from your graveyard onto the top of your library.
7. Repeat.

This clever loop turns the zero-cost artifact Urza's Bauble into an endlessly recastable engine fueled by Elsha of the Infinite, who lets you cast noncreature spells right off the top of your library with flash. As you cast and sacrifice the Bauble repeatedly, chapters II and III of Showdown of the Skalds provide the steady stream of +1/+1 counters needed to fund Arcbound Reclaimer's ability. In turn, the Reclaimer dutifully recycles the sacrificed Bauble straight back onto your library, letting Elsha play it over and over again to build an overwhelming storm count or draw you an ocean of cards at the next upkeep.