Suggestion to improve blue mage

So after getting a few hw skills I really gotta get this off my chest. One big reason I'm againt blu as limited is the overwhelming amount of filler kills and samey potency for most skills. It's super annoying that they are mostly there for the carnival vs useful skills or combos for actual raids or trial fights or dungeons.

A simple super easy solution to making it feel way more rewarding and fun is this.

Upon casting a skill, gain a stack of Azure Essence (Or whatever you'd wanna call it lol) that upon casting a different skill adds 20 potency to it while granting another stack up to 3 and after the 3rd stack it resets but casting the same skill in a row removes the stacks entirely incentivising you to actually use other skills vs just spamming the highest one you got repeatedly.

Would be super easy for devs to do something like that, and immediately improves blu by a lot. Or heck imagine if they implemented a create a combo for blu, letting you string together skills you find visually appealing. There's a few days to make skills useful outside of carnival.

they are there so you can choose your favourite animation and attack type and you don't have to spam the same move, you can take multiple attacks and use them in any order you want.

I like it, at least you are not forced to use some new expansion ugly skill because a trait upgraded your old skills (machinist for example).

Sounds like one of the talents they gave the WoW Windwalker Monks. you gained a stacking buff for as long as the ability you used wasn't the same as the one you just used. It was a fun thing to work with; even if it wasn't the optimum talent choice, it rewarded you for using your kit.
I'd like it if they made something like this, really.

You only have 24 slots. There are already more than half of that with mandatory spells. Customization is something unique do BLU and I don't like to be forced to use the best setup.

I always thought that would be fun to have an elemental wheel gauge mechanic (inspired by Eureka's), so it changes the elemental balance of your target and you get to use different spells because of that.

Condensed Libra being the only thing to encourage using different elements outside of the carnivale is a little silly.

I think just providing a damage boost when using different elements in a chain would spice up their GCD rotation a bit instead of it being filler spell 90% of the time and Boost/Song of Torment/Magic Hammer/Devour as the other 10%