Falco Spara, Pactweaver, Sensei's Divining Top, and Ashnod's Altar

Prerequisites

• Falco Spara, Pactweaver on the battlefield
• Sensei's Divining Top on the battlefield
• Ashnod's Altar on the battlefield

Steps

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 from the battlefield
2. If the persist or undying creature does not have a -1/-1 or +1/+1 counter on it, activate Ashnod's Altar by sacrificing the creature, adding When the creature dies, its persist or undying ability triggers, returning it from your graveyard to the battlefield with either a -1/-1 or +1/+1 counter on it
3. Cast Sensei's Divining Top from the top of your library by paying and removing the +1/+1 or -1/-1 counter from the persist or undying creature
4. Repeat

Results

• Infinite card draw
• Near-infinite ETB
• Infinite draw triggers
• Near-infinite storm count
• Near-infinite LTB
• Near-infinite death triggers
• Near-infinite sacrifice triggers
• Near-infinite colorless mana