Shin Okada
Explorer
Maximized Flame Blade uses up a 6th-level spell slot (or Sudden Maximize feat), need a standard action to cast, lasts only 1 minutes/level (means one combat), and wielded by someone with only descent BAB (3/4 of HD). Seems not that much powerful for me. A 11th-level caster can do much nastier things with a 6th-level spell. And 11th-level fighter type may actually inflict simular or even bigger damages/per round without spending resources.
And at that level, energy resistances/immunities are quite popular. Especially those against fire are.
And at that level, energy resistances/immunities are quite popular. Especially those against fire are.