Mystic Barrier + Copy Enchantment

Mystic Barrier

Copy Enchantment

How it works

1. At the beginning of each of your upkeeps, Mystic Barrier and Copy Enchantment trigger, choosing "left" for Mystic Barrier and "right" for Copy Enchantment.
2. As long as there are three or more players in the game, creatures cannot attack.

By stacking Mystic Barrier and a Copy Enchantment that mirrors it, you gain absolute control over the battlefield's political landscape during your upkeep by choosing opposing directions for each enchantment. Because Mystic Barrier's restriction applies to *each* player, having two copies with conflicting directional choices creates an impossible paradox for three or more players, completely locking down the combat phase so that creatures can never attack.