Namor the Sub-Mariner, Phyrexian Altar, Clockspinning, and Wizards of Thay

Prerequisites

• Namor the Sub-Mariner on the battlefield
• Phyrexian Altar on the battlefield
• Clockspinning in hand
• Wizards of Thay on the battlefield
• available

Steps

1. Declare Wizards of Thay as an attacker
2. Its myriad ability triggers, creating a token copy of it attacking each other opponent
3. Holding priority, cast Clockspinning by paying due to each Wizards of Thay
4. Namor triggers, creating a 1/1 Merfolk creature token
5. Resolve Clockspinning
6. Activate Phyrexian Altar by sacrificing the Merfolk, adding
7. Repeat from step 2

Results

• Infinite ETB
• Infinite LTB
• Infinite death triggers
• Infinite magecraft triggers
• Infinite proliferate
• Infinite sacrifice triggers
• Infinite storm count