User blog comment:IamJakuhoRaikoben/Chapter 518: Master Enchant, Review./@comment-5303512-20170126232425/@comment-24546844-20170127135905

Invel is one of the most powerful mages in the Alvarez Empire and by far is sgown to be the most to Zeref among them yet he was easily defeated by Gray, a mage that is supposed to be inferior to him in both raw magic power and skills with Ice Magic, as proved in panel when Invel used his magic. By your logic Gray's victory can be atributed to the power of Gray's feelings but if so, are you telling me that Invel's strong devotion to Zeref and desire to win the war for His Majesty doesn't make his magic stronger just like Gray? By this logic, if it does then Gray's victoy is inexcusable bullshit and Faory Tail can't be used in crossover battles because of it's inconsistent power levels, if it doesn't then power of feelings is just convenient bullshit and can't be used as argument in a crossover battle.