Falco Spara, Pactweaver, Sensei's Divining Top, Cheering Fanatic, and Machinesmith Automaton

Prerequisites

• Falco Spara, Pactweaver on the battlefield
• Sensei's Divining Top on the battlefield
• Cheering Fanatic on the battlefield
• Machinesmith Automaton on the battlefield

Steps

1. Declare Cheering Fanatic as an attacker
2. When it triggers, choose to name "Sensei's Divining Top"
3. 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
4. Cast Sensei's Divining Top from the top of your library by paying and removing a counter from a creature you control
5. When Sensei's Divining Top enters, Machinesmith Automaton triggers, putting a +1/+1 counter on Machinesmith Automaton
6. Repeat from step 2

Results

• Infinite card draw
• Infinite draw triggers
• Near-infinite storm count