Board Thread:Questions and Answers/@comment-25055577-20140820144941/@comment-4556650-20140821091641

火炎 is the Kanji

ブレイズ is the Katakana

The Katakana "Bureizu" should be intended to be transcribed into English as "Blaze". Without the katakana, the English translators could have translated 火炎 into just Flame. Basically, the katakana is done by the author on purpose to portray the official English name of the Power.