Falco Spara, Pactweaver + Sensei's Divining Top + Uthros Research Craft + Semblance Anvil

Falco Spara, Pactweaver

Sensei's Divining Top

Uthros Research Craft

Semblance Anvil

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 relies on turning Sensei's Divining Top into a free, repeatable spell by utilizing Falco Spara, Pactweaver's ability to cast from the top of your library using counters instead of mana. To make this work seamlessly, Semblance Anvil reduces the cost of your artifacts by exiling a matching card from your hand, dropping the Top's mana value to zero. Meanwhile, Uthros Research Craft serves as the engine's fuel source: its static ability draws you a card and replaces the spent charge counter every single time you cast an artifact spell, allowing you to cycle Sensei's Divining Top infinitely for endless card draw and storm count.