Summon Bahamut and Summon Phoenix can be cast while outside of combat

[moomoooo]

Its less of a bug and more of a loophole. Aethercharge does nothing but boosts yourself. Summoning Demi puts you into combat since it is an attack of a sort, so hence it "Can" be used outside since it initiates combat. Skills like Aetherflow, Cards signs, and Manification and such don't affect or interact with an enemy and only yourself; why they need to initiate combat first.

The Forbidden Chakra (and Enlightenment) is also an attack that can only be executed while in combat. Unlike Summon Bahamut/Phoenix, you must be in combat before The Forbidden Chakra can be used.