Magosi, the Waterveil + Nesting Grounds + Contagion Engine
Produces: Infinite turns, Lock
- Magosi, the Waterveil
- Nesting Grounds
- Contagion Engine
- Color identity
- U
- Mana
- {5} each turn
Prerequisites
Magosi has at least one eon counter on it.
Steps
- Activate Contagion Engine by paying {4} and tapping it, putting an eon counter on Magosi.
- Activate Nesting Grounds's last ability by paying {1} and tapping it, moving an eon counter from Magosi to Nesting Grounds.
- Activate Magosi's last ability by tapping it, removing an eon counter from it and returning it to your hand, taking an extra turn after this one.
- Play Magosi from your hand.
- Move to your next turn.
- Activate Contagion Engine by paying {4} and tapping it, putting an eon counter on Nesting Grounds.
- Activate Nesting Grounds's last ability by paying {1} and tapping it, moving an eon counter from Nesting Grounds to Magosi.
- Repeat from step 3.
How to execute this combo
The "Magosi, the Waterveil + Nesting Grounds + Contagion Engine" combo takes 8 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 turns, Lock.
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.