Chronozoa, Solemnity, and Yahenni, Undying Partisan

Prerequisites

• Chronozoa in hand
• Solemnity on the battlefield
• Yahenni, Undying Partisan on the battlefield
• available

Steps

1. Cast Chronozoa by paying
2. It will enter without a time counter on it due to Solemnity
3. Activate Yahenni by sacrificing Chronozoa
4. When Chronozoa dies, it triggers, creating two token copies of itself that also enter with no time counters on them due to Solemnity
5. Resolve the Yahenni ability
6. Repeat from step 2 using a token copy of Chronozoa instead

Results

• Infinite LTB
• Infinite ETB
• Infinite sacrifice triggers
• Infinite death triggers
• Infinite creature tokens