Umbral Mantle + Elvish Archdruid
Produces: Infinite untap of creatures you control, Infinite green mana, Infinitely large creature until end of turn, Infinite mana creatures you control can produce


- Color identity
- G
Prerequisites
Umbral Mantle attached to Elvish Archdruid. Elvish Archdruid does not have summoning sickness. You control at least three Elves.
Steps
- Activate Elvish Archdruid by tapping it, adding at least {G}{G}{G}.
- Activate Elvish Archdruid by paying {3} and untapping it, giving it +2/+2 until end of turn.
- Repeat.
How to execute this combo
The "Umbral Mantle + Elvish Archdruid" combo takes 3 steps in order. Make sure you have the mana open and permanents listed in the prerequisites before you start — opponents can respond between steps.
The end result: Infinite untap of creatures you control, Infinite green mana, Infinitely large creature until end of turn, Infinite mana creatures you control can produce.
Practice the line offline: lay out the cards, walk through each step, and note where you can lose the combo (summoning sickness, lack of priority, removal on a key permanent). In game, announce each step clearly; in casual play you can offer to shortcut after demonstrating the loop.
The best window is a turn when opponents are tapped out or after they commit a spell — hold protection (a counter, Vexing Shusher) if the combo wins on the spot.