User blog comment:Miskos3/Fairy Tail Episode 255: Tartaros arc: Steel, Review/@comment-25111584-20151017095642/@comment-25111584-20151017103239

That's just the subtitles, HA. What the VA says is what counts. If it's an anime-only sound effect, then we use whatever CR gave us as the name. We could just as well use some name of our own, seeing how CR obviously doesn't think of Tempester's words as Spells, but as mere sound effects, which is why they keep giving different tl to the same word.