Falco Spara, Pactweaver + Sensei's Divining Top + Uthros Research Craft + Helm of Awakening

Falco Spara, Pactweaver

Sensei's Divining Top

Uthros Research Craft

Helm of Awakening

How it works

1. Activate Sensei's Divining Top's second ability by tapping it, causing you to draw a card and put Sensei's Divining Top on top of your library.
2. Cast Sensei's Diving Top from the top of your library by paying 0 and removing a charge counter from Uthros Research Craft.
3. Uthros Research Craft triggers, putting a charge counter on it and causing you to draw a card.
4. Repeat.

This clever loop turns the top of your library into an endless engine, fueled entirely by the synergy between Sensei's Divining Top and Falco Spara, Pactweaver. By utilizing Falco Spara's ability to let you cast spells from the top of your library using creature counters as an alternate cost—combined with Helm of Awakening reducing the artifact's cost down to zero—you can repeatedly cast Sensei's Divining Top without spending any mana. Meanwhile, Uthros Research Craft serves as both a counter reservoir and a payout, harvesting the charge counters needed to fuel Falco Spara while drawing you an extra card every single time an artifact spell is cast.