Leveler, Out of the Tombs, Fecundity, and Ashnod's Altar

Prerequisites

• Leveler in hand
• Out of the Tombs on the battlefield
• Fecundity on the battlefield
• Ashnod's Altar on the battlefield
• available

Steps

1. Cast Leveler by paying
2. Leveler enters the battlefield, exiling your library
3. Activate Ashnod's Altar by sacrificing any creature, adding
4. Fecundity triggers, causing you to return any creature from your graveyard to the battlefield due to Out of the Tombs
5. Repeat from step 3

Results

• Exile your library
• Infinite colorless mana
• Infinite death triggers
• Infinite ETB
• Infinite LTB
• Infinite sacrifice triggers