User blog comment:Miskos3/Fairy Tail 521: The Strongest Wizard, Review/@comment-3045936-20170212214706/@comment-1776824-20170214012131

Following the logic that Brandish's magic, which is superbly powerful in its own right, and can be ST or AoE depending on usage, does not affect people stronger than the caster, it only makes sense that magic as powerful as Fairy Law doesn't affect people stronger than the caster. If one magic has imposed limits, there must be others with similar such limits.