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

Prerequisites

• Falco Spara, Pactweaver on the battlefield
• Sensei's Divining Top on the battlefield
• Ashnod's Altar on the battlefield
• Lesser Masticore on the battlefield
• Lesser Masticore does not have a -1/-1 counter on it

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. Activate Ashnod's Altar by sacrificing Lesser Masticore, adding
3. Lesser Masticore dies, triggering its persist ability, returning itself from your graveyard to the battlefield with a -1/-1 counter on it
4. Cast Sensei's Divining Top from the top of your library by paying and removing the -1/-1 counter from Lesser Masticore
5. Repeat

Results

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