Redshift, Rocketeer Chief + Umbral Mantle
Produces: Infinite untap of creatures you control, Infinite mana creatures you control can produce, Infinite colored mana that can only be spent to activate abilities, Infinitely large creature until end of turn


- Color identity
- RG
- Mana
- {1} at most
Prerequisites
Redshift, Rocketeer Chief does not have summoning sickness. Umbral Mantle attached to Redshift.
Steps
- Activate Redshift by tapping it, adding an amount mana of any color equal to its power that can only be spent to activate abilities.
- Activate Redshift by paying {3} and untapping it, giving it +2/+2 until end of turn.
- Repeat.
How to execute this combo
The "Redshift, Rocketeer Chief + Umbral Mantle" 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 mana creatures you control can produce, Infinite colored mana that can only be spent to activate abilities, Infinitely large creature until end of turn.
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.