Mystic Barrier + Estrid's Invocation
Produces: Creatures can't attack, Lock
- Mystic Barrier
- Estrid's Invocation
- Color identity
- WU
Prerequisites
You have at least two opponents.
Steps
- At the beginning of each of your upkeeps, Mystic Barrier and Estrid's Invocation trigger, choosing "left" for Mystic Barrier and "right" for Estrid's Invocation.
- As long as there are three or more players in the game, creatures cannot attack.
How to execute this combo
The "Mystic Barrier + Estrid's Invocation" combo takes 2 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: Creatures can't attack, 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.