Nim Deathmantle, Ashnod's Altar, and Shadow Puppeteers

Prerequisites

• Nim Deathmantle on the battlefield
• Ashnod's Altar on the battlefield
• Shadow Puppeteers on the battlefield
• available

Steps

1. Activate Ashnod's Altar by sacrificing Shadow Puppeteers, adding
2. When Shadow Puppeteers dies, Nim Deathmantle triggers, causing you to pay to return Shadow Puppeteers from your graveyard to the battlefield, and attach Nim Deathmantle to it
3. When Shadow Puppeteers enters the battlefield, it triggers, creating two 1/1 Faerie Rogue creature tokens
4. Activate Ashnod's Altar by sacrificing a Faerie Rogue, adding
5. Repeat

Results

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