Imotekh the Stormlord, Nim Deathmantle, and Ashnod's Altar

Prerequisites

• Imotekh the Stormlord on the battlefield
• Nim Deathmantle on the battlefield
• Ashnod's Altar on the battlefield
• You control at least one nontoken artifact creature
• available

Steps

1. Activate Ashnod's Altar by sacrificing a nontoken artifact creature, adding
2. The creature dies, triggering Nim Deathmantle, causing you to pay to return the artifact creature from your graveyard to the battlefield, and attach Nim Deathmantle to it
3. Imotekh's first ability triggers, creating two 2/2 Necron Warrior artifact creature tokens
4. Activate Ashnod's Altar by sacrificing a Necron Warrior, adding
5. Repeat

Results

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