Zask, Skittering Swarmlord, Rhonas's Monument, Skylasher, and Phyrexian Altar

Prerequisites

• Zask, Skittering Swarmlord on the battlefield
• Rhonas's Monument on the battlefield
• Skylasher on the battlefield
• Phyrexian Altar on the battlefield

Steps

1. Activate Phyrexian Altar by sacrificing Skylasher, adding
2. Zask triggers
3. In response, cast Skylasher from your graveyard by paying
4. Ronas's Monument triggers, giving target creature you control +2/+2 and trample until end of turn
5. Skylasher enters the battlefield
6. Resolve Zask's trigger, milling two cards
7. Repeat

Results

• Infinite death triggers
• Infinite ETB
• Infinite LTB
• Infinitely large creatures until end of turn
• Infinite sacrifice triggers
• Infinite self-mill
• Infinite storm count