Falco Spara, Pactweaver + Sensei's Divining Top + Herald of Kozilek + Chasm Skulker

Falco Spara, Pactweaver

Sensei's Divining Top

Herald of Kozilek

Chasm Skulker

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. Chasm Skulker triggers, putting a +1/+1 counter on it.
3. Cast Sensei's Divining Top from the top of your library by paying 0 and removing a counter from a creature you control.
4. Repeat.

This elegant loop turns Sensei's Divining Top into a self-replenishing engine by leveraging Falco Spara, Pactweaver to cast it directly from the top of your library for free—using its own shield counter or any other creature's counters as alternative payment. Herald of Kozilek provides the crucial cost reduction that drops the Top's casting cost from {1} down to {0}, ensuring you never run out of mana. Meanwhile, Chasm Skulker happily watches the card draw happen, growing infinitely large with +1/+1 counters for every iteration of the cycle.