Extraction Specialist, Leonin Relic-Warder, Mycosynth Lattice, and Ashnod's Altar

Prerequisites

• Leonin Relic-Warder in hand
• All other permanents on the battlefield
• available

Steps

1. Cast Leonin Relic-Warder by paying
2. Leonin Relic-Warder's ETB ability triggers, exiling Extraction Specialist
3. Activate Ashnod's Altar by sacrificing Leonin Relic-Warder, adding
4. Leonin Relic-Warder's LTB ability triggers, returning Extraction Specialist from exile to the battlefield
5. Extraction Specialist triggers, returning Leonin Relic-Warder from your graveyard to the battlefield
6. Repeat from step 2

Results

• Infinite colored mana
• Infinite colorless mana
• Infinite ETB
• Infinite LTB
• Infinite death triggers
• Infinite sacrifice triggers