Weaponcraft Enthusiast, Nim Deathmantle, and Ashnod's Altar

Prerequisites

• Weaponcraft Enthusiast on the battlefield
• Nim Deathmantle on the battlefield
• Ashnod's Altar on the battlefield
• available

Steps

1. Activate Ashnod's Altar by sacrificing Weaponcraft Enthusiast, adding
2. Weaponcraft Enthusiast dies, triggering Nim Deathmantle, causing you to pay to return Weaponcraft Enthusiast from your graveyard to the battlefield, and attach Nim Deathmantle to it
3. Weaponcraft Enthusiast enters the battlefield, creating two 1/1 Servo creature tokens
4. Activate Ashnod's Altar by sacrificing a Servo, adding
5. Repeat

Results

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