Spark Double + Felidar Guardian
Produces: Infinite LTB, Infinite ETB
- Color identity
- WU
Prerequisites
You have enough mana to cast Spark Double.
Steps
- Cast Spark Double by paying its mana cost, choosing to have it enter the battlefield as a copy of Felidar Guardian
- When Spark Double enters the battlefield, it triggers, blinking Felidar Guardian.
- When Felidar Guardian enters the battlefield, it triggers, blinking Spark Double. Choose to have Spark Double enter the battlefield as a copy of Felidar Guardian.
- Repeat from step 2.
How to execute this combo
The "Spark Double + Felidar Guardian" combo takes 4 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 LTB, Infinite ETB.
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.