Jaheira, Friend of the Forest, Spawning Pit, Akroma's Memorial, and Primal Vigor

Prerequisites

• Jaheira, Friend of the Forest on the battlefield
• Spawning Pit on the battlefield
• Akroma's Memorial on the battlefield
• Primal Vigor on the battlefield
• available

Steps

1. Activate Spawning Pit's second ability by paying and removing two charge counters from it, creating two creature tokens Activate the tokens by tapping them, adding
2. Activate Spawning Pit's first ability twice by sacrificing the tokens, putting two charge counters on Spawning Pit
3. Repeat

Results

• Infinite LTB
• Infinite ETB
• Infinite sacrifice triggers
• Infinite death triggers
• Infinite green mana