Ishkanah, Grafwidow, Nim Deathmantle, and Ashnod's Altar

Prerequisites

• Ishkanah, Grafwidow on the battlefield
• Nim Deathmantle on the battlefield
• Ashnod's Altar on the battlefield
• There are at least four card types among cards in your graveyard
• available

Steps

1. Activate Ashnod's Altar by sacrificing Ishkanah, adding
2. Ishkanah dies, triggering Nim Deathmantle, causing you to pay to return Ishkanah from your graveyard to the battlefield, and attach Nim Deathmantle to it
3. Ishkanah enters the battlefield, creating three 1/2 Spider creature tokens
4. Activate Ashnod's Altar by sacrificing a Spider, adding
5. Repeat
6. If you have black mana available, you may activate Ishkanah's ability to cause any number of opponent to lose life equal to the number of Spiders you control

Results

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