User blog comment:IamJakuhoRaikoben/Chapter 473: Red Lightning, Review./@comment-180.191.126.111-20160220212729/@comment-6401212-20160220222159

I think what happened was the jutsu shiki and the MBP were connected somehow so when Walh cancelled the jutsu shiki he "cured" Laxus as well. Unless it's explained next chapter, it's a bit ridiculous. Especially if Laxus was somehow healed by Wahl because he should still be damaged, although Wendy and Chelia would probably heal him after they beat Dimaria, so it doesn't matter.