Othelm, Sigardian Outcast, Llanowar Druid, Ashaya, Soul of the Wild, and Concordant Crossroads

Prerequisites

• Othelm, Sigardian Outcast on the battlefield
• Llanowar Druid on the battlefield
• Ashaya, Soul of the Wild on the battlefield
• Concordant Crossroads on the battlefield
• You control at least two other nontoken creatures

Steps

1. Activate at least three nontoken creatures you control except Othelm and Llanowar Druid by tapping them, adding at least
2. Activate Llanowar Druid by tapping and sacrificing it
3. Holding priority, activate Othelm by paying and tapping it, returning Llanowar Druid from your graveyard to the battlefield tapped
4. Resolve the Llanowar Druid ability, untapping all Forests
5. Repeat

Results

• Infinite death triggers
• Infinite ETB
• Infinite green mana
• Infinite LTB
• Infinite mana creatures you control can produce
• Infinite sacrifice triggers
• Infinite untap of all creatures
• Infinite untap of all Forests