Saheeli, the Sun's Brilliance, Umbral Mantle, and Palinchron

Prerequisites

• Saheeli, the Sun's Brilliance on the battlefield
• Umbral Mantle on the battlefield
• Palinchron on the battlefield
• Umbral Mantle attached to Saheeli
• Saheeli does not have summoning sickness
• You control up to seven lands that can tap to produce at least

Steps

1. Activate up to seven lands by tapping them, adding at least
2. Activate Saheeli by paying and tapping it, creating a token copy of Palinchron with haste
3. When the token Palinchron enters the battlefield, it triggers, untapping up to seven lands
4. Repeat
5. If you control up to seven lands that can tap to produce at least , this combo nets infinite mana, and you may target any other creature(s) or artifact(s) using Saheeli's ability

Results

• Infinite copies of artifacts you control
• Infinite copies of creatures you control with haste
• Infinite creature tokens with haste
• Infinite death triggers
• Infinite ETB
• Infinite LTB
• Infinite mana lands you control can produce
• Infinite sacrifice triggers
• Infinite untap of lands you control