Warren Soultrader, Mm'menon, Uthros Exile, and Sifa Grent

Prerequisites

• Warren Soultrader on the battlefield
• Mm'menon, Uthros Exile on the battlefield
• Sifa Grent on the battlefield

Steps

1. Activate Warren Soultrader by paying 1 life and sacrificing the persist creature
2. When the persist creature dies, its persist ability and Sifa Grent trigger
3. Resolve the persist trigger, returning the persist creature from your graveyard to the battlefield with a -1/-1 counter on it
4. Resolve the Sifa Grent trigger, causing target opponent to lose 1 life and you to gain 1 life
5. Resolve the Warren Soultrader ability, creating a Treasure token
6. When the Treasure enters, Mm'menon triggers, putting a +1/+1 counter on the persist creature
7. Remove a +1/+1 counter and a -1/-1 counter from the persist creature as a state-based action
8. Repeat

Results

• Infinite creature ETB
• Infinite creature LTB
• Infinite Treasure tokens
• Infinite colored mana
• Infinite death triggers
• Infinite lifegain triggers
• Infinite lifeloss
• Infinite creature sacrifice triggers
• Infinite artifact ETB
• Infinite artifact LTB
• Infinite artifact sacrifice triggers
• Infinite artifact tokens