Rinoa is a newly-awakened Sorceress, one of the few people in her world who can use magic naturally. She has immense power at her fingertips, but usually keeps most of it under lockdown. She can bust out the Sorceress powers any time she likes, but since Sorceresses have a very hard time shutting off again, she'll only be doing that here in Fandom if the situation looks particularly grim (BDEs, mostly), or if she's trying to learn control in a safe Danger Room-type setting.

While her normal self, she can cast what's considered "normal" magic in her world, in varying strengths -- elemental magic, healing spells, status ailments (i.e. Sleep, Silence, Slow), status boosts (i.e. Haste, Protect, Regen) and a few pull-out-the-stops moves like Holy, Meltdown, Pain, and Meteor (rocks fall, everyone takes damage).

Sorceress Mode is called "Angel Wing" in game, because she grows white, feathery wings and then goes into a frenzied mage state. While a Sorceress, all of her magic is boosted 5x, and she casts like it is going out of style, fast and furious. No need to recharge anything. But she won't use healing magic or boosts at that point, because lol heal yourself, she is killing bitches.

... And then Squall or someone else will need to talk her down and tell her to put the wings away and come back now, please.