Rootpath Purifier, Earthcraft, Nykthos, Shrine to Nyx, and Lab Rats

Prerequisites

• Rootpath Purifier on the battlefield
• Earthcraft on the battlefield
• Nykthos, Shrine to Nyx on the battlefield
• Lab Rats in hand
• available

Steps

1. Activate Nykthos, Shrine to Nyx by paying and tapping it, adding at least seven Cast Lab Rats with buyback by paying , creating a creature token and returning Lab Rats to your hand
2. Activate Earthcraft by tapping the creature token, untapping Nykthos, Shrine to Nyx
3. Repeat

Results

• Infinite ETB
• Infinite storm count
• Infinite mana lands you control can produce
• Infinite magecraft triggers
• Infinite tapped creature tokens
• Infinite untap of lands you control