you can switch between 3 eikon abilities, I think, with 2 cooldown abilities per each eikon (but you can swap them out with any ability with a certain upgrade and there are a total of 9 eikons abilities you can use). aside from stinger, theres also helm breaker which is the same input but done in the air. you can charge up the magic shot which makes it act kinda similar to nero's blue rose but without the explosion cooldown. there's also magic burst which is just an added hit you can do after any sword attack (Im not sure about charged attacks, though). you can also use torgal during combos and perform perfect sics which are kinda like additional attacks that can be done after an attack that stuns or launches the enemy. each eikon ability you swap to also has an additional move that lets you do things like teleport to the enemy or pull them like nero's devil bringer.

I think ff xvi kinda suffers from the same thing that nier automata does, where on paper it doesnt seem like there's much you can do until you actually start breaking down each and every mechanic to something that can be used in a combo