Falco Spara, Pactweaver + Sensei's Divining Top + Surge Conductor + Umori, the Collector

Falco Spara, Pactweaver

Sensei's Divining Top

Surge Conductor

Umori, the Collector

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 counter from a creature you control.
3. When Sensei's Divining Top enters the battlefield, Surge Conductor triggers, putting a counter on a creature you control that already has a counter on it.
4. Repeat.

This ingenious loop turns Sensei's Divining Top into a self-sustaining engine by utilizing Falco Spara, Pactweaver to cast the Top directly from the top of your library for free—well, almost free, by paying its mana cost of `{0}` and cashing in a counter. Every time the Top re-enters the battlefield, Surge Conductor’s static-triggered ability spots the new artifact and triggers a proliferation to replace the exact counter you just spent to cast it. Meanwhile, Umori, the Collector sits quietly in the background as your companion, shaving generic mana off your spells to ensure the rhythm of your top-deck casts never misses a beat.