User blog comment:Miskos3/Fairy Tail Episode 253: Tartaros arc: Silver Memories, Review/@comment-24039234-20151003120305/@comment-5303512-20151004192854

@Miskos, that sort of logic is illogical, like how Natsu's flames defeated Motherglare's adamantine body or Wendy's air hurt Zirconis, Laxus hurt Atlas, etc.

It might be true if a Slayer faces their respective targets with the same element it might prove effective but it is shown that despite the difference in elements, Slayers can still hurt or even defeat their respective targets.