User blog comment:Miskos3/Fairy Tail 535: The Greatest Power, Review/@comment-5303512-20170514221549/@comment-24546844-20170515195327

"It's not like he can instantly augment his spells and physical effectiveness in battle".

He can, that's what infinite magic power is supposed to do. Like when he used his new power to dodge/negate Natsu's attack and easily punched a hole through his body.