PhantomMasterThief wrote: »If an item has a little white dot in the upper left corner then only; Powerful and Eternal flames can be used on it.
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if an item has a gray dot/transparent dot/no dot then all flames could be used Lv. XXX ~ Eternal.
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( of course; you can't use a Lv. 150 Flame on a Absolab equip even if it has a transparent dot because it's a level 160 equip )
All items before the ark patch were given a gray dot, and items obtained after the ark patch with bonus stat pre-applied are given a white dot.