Marath, Will of the Wild, Doubling Season, and Ashnod's Altar

Prerequisites

• Marath, Will of the Wild on the battlefield
• Doubling Season on the battlefield
• Ashnod's Altar on the battlefield
• Marath has at least three +1/+1 counters on it
• available

Steps

1. Activate Marath by paying and removing a +1/+1 counter from it, creating two 1/1 Elemental creature tokens
2. Activate Ashnod's Altar by sacrificing an Elemental, adding
3. Activate Marath by paying and removing a +1/+1 counter from itself, putting two +1/+1 counters on itself
4. Repeat
5. Once you have infinite mana, you may use it to get infinite +1/+1 counters on Marath and choose to deal infinite damage to any target(s)

Results

• Infinite +1/+1 counters
• Infinite colorless mana
• Infinite creature tokens
• Infinite damage
• Infinite death triggers
• Infinite ETB
• Infinite LTB
• Infinite sacrifice triggers