He's more of a spell swordsman, the intention is he'll gain sword-based magic throughout, however making the flaming dragon spin attack a weapon art instead of reliant on magic is a much better idea. I think I'll do that. As for the cooldown period, perhaps once or twice only per battle (with rest in-between, in case he needs to fight consecutively), otherwise he can use a weaker version without the flames as a basic weapon technique.

Also the symbol is actual the symbol used for the Tune of Ages, but it is also Nayru's symbol.