Falco Spara, Pactweaver + Sensei's Divining Top + Arcbound Crusher + Valeria Richards, Precocious

Falco Spara, Pactweaver

Sensei's Divining Top

Arcbound Crusher

Valeria Richards, Precocious

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 Divining 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, Arcbound Crusher triggers, putting a +1/+1 counter on Arcbound Crusher.
4. Repeat.

This clever loop turns your library into an endless well by leveraging Falco Spara, Pactweaver's ability to cast spells directly from the top while paying costs through creature counters. You tap Sensei's Divining Top to draw a card and place itself back on top of your library, at which point Valeria Richards, Precocious reduces its casting cost down to zero. Recasting Sensei's Divining Top triggers Arcbound Crusher to grow larger with a new +1/+1 counter, which conveniently provides the exact counter resource Falco Spara, Pactweaver needs to fuel the next iteration.