Rootha, Mercurial Artist, Early Harvest, and Emergence Zone

Prerequisites

• Rootha, Mercurial Artist on the battlefield
• Early Harvest in hand
• Emergence Zone on the battlefield
• available

Steps

1. Activate Emergence Zone's second ability by paying , tapping and sacrificing it, allowing you to cast spells as though they have flash this turn
2. Activate any number of basic lands by tapping them, adding at least
3. Cast Early Harvest by paying
4. Holding priority, activate Rootha by paying and returning it from the battlefield to your hand, copying Early Harvest Resolve the Early Harvest copy, untapping all basic lands you control
5. Activate any number of basic lands by tapping them, adding at least
6. Cast Rootha by paying
7. Repeat from step 4

Results

• Infinite storm count
• Infinite magecraft triggers
• Infinite LTB
• Infinite ETB
• Infinite mana basic lands you control can produce
• Infinite untap of basic lands you control