Prerequisites
- Umbral Mantle on the battlefield
- Selvala, Heart of the Wilds on the battlefield
at most available
Steps
- Activate Selvala by paying
and tapping it, adding an amount of
equal to the greatest power among creatures you control
- Activate Selvala by paying
and untapping it, giving it +2/+2 until end of turn
- Repeat
Results
- Infinite colored mana
- Infinite untap of creatures you control
- Infinite mana creatures you control can produce
- Infinitely large creature until end of turn
Required Cards 2
Umbral Mantle
Artifact — Equipment
Selvala, Heart of the Wilds
Legendary Creature — Elf Scout