So I've had this thought for a while. When our 5* weapons reaches level 10, what else can we do with it? As if heating 5* weapons are hard enough, I'm thinking that there should be a new system that upgrades our 5* weapons beyond heating, that revolves around the Weapon Charging mechanic. You know, where you charge your sword/gun/bomb. This time, we should be able to charge up our weapons' meters multiple times for new, stronger charge attacks.
Charging the Meter
Knights can charge their weapons up to a maximum of four times, with charging each additional meter taking up 25% longer in time. After charging up the first meter, the more energy generated into the additional meters, the more powerful the charge attack will become. With each additional meter charged, the knight's attack will gain new effects. When four charges are met, the knight's charge attack changes into something new, and completely more powerful, or even OP.
Making your Weapon More Powerful
However, in order to unlock the second, third, and fourth Weapon Charge Attack meters, you'll have to continue heating your 5* weapon beyond level 10, up to a maximum of level 40. That'll be a hell ton of Rads.
When you're about to reach level 15, 25, and 35, the Radiant Heat Crystal cost will be reduced, but an energy cost is added, being 50 energy at level 15, 100 energy at level 25, and 200 energy at level 35. When you reach these levels, you'll be able to charge your weapon half into the next highest attained Weapon Charge Attack Meter.
When you're about to reach level 20, 30, and 40, there will be no Radiant Heat Crystal cost. Instead, a Heat Catalyst, Advanced Heat Catalyst, or Ultimate Heat Catalyst is needed. When you reach level 20, 30, or 40, your knight has gained the ability to fully charge another Weapon Charge Attack meter!
The effort put into powering your 5* weapons will be a little bit less harder than growing your Battle Sprites. Hopefully, with this new Charge system, it will encourage OOO to make attaining Rads more easy.
Advanced Charge Attacks
What are these new charge attacks when you reach level 40? Well, it's up to your imagination.
For example:
Final Flourish - The knight will randomly flash around the battlefield, becoming invulnerable as they strike random targets. (For example, Fiora's Blade Waltz)
Barbarous Thorn Blade - After swinging, three replicas of Snarbolax will appear to assist the knight, each having a lifebar. They will continue to aid until they die or the knight summons them once again.
Leviathan - The knight shoves their sword into the ground, producing a large explosion of energy, inflicting status effects at random to every in the area.
Divine Avenger - Calling upon the power of Owlites, the knight creates an area that heals fellow knights and allies slowly, and random Owlites will swoop down to attack enemies in the area.
Gran Faust - Summons three Phantoms to assist the knight for a duration. They will continually emit short bursts that curses nearby enemies.
Argent Peacemaker - The knight continually fires mini-raptors that swarms and homes onto enemies until the knight moves.
Polaris - Fires a ball of electric energy, that conjures a raging lightning storm around it, that induces Shock and keeps disrupting enemies in repeating pulses.
Graviton Vortex - Conjures the power of the Void(like in the Unknown Passage) that creates rips in space that damages enemies and sucks them in. Each rip in space acts like a fast Vortex bomb, and has a chance to instakill monsters.
Shivermist Buster - Creates a swirling snowstorm that knocks around monsters, constantly damaging, freezing them and rendering them unable to attack and move.
Grim Repeater - Creates an indestructible turret that infinitely fires charge attacks until expiration.
Mixmaster - Creates a giant Creep Cake the size of the Royal Jelly to assist the knights. Fellow knights and yourself can choose to attack the Creep Cake directly, reducing its HP and healing fellow knights. Collateral damage does not apply.
I also was thinking the same thing as you where weapons would gain Additional effects after reaching level 10 in heat. I say where on the same track when it comes to creating something more for weapons, but mines was not limited to 5 star. i wanted all weapons who reached a level 10 in heat to gain an additional effect. while if that weapon was upgraded, it would lpse this effect, but gain it again when it's upgraded version has reached level 10.
I have also thought of creating special effects for all weapons/ gear in the game to increase game complexity so that the game would have more interesting playabilit. Mixi and match different puzzle pieces of gear to get a unique combination. This idea did not go very well with the forumers.
I also had an idea of creating ultimate charge attacks base on heat meter you gain on the current level, or consequent levels yo. Would do. This also did not go well with the forumers. This idea is more in line with what you are suggesting, but i tried my best to never go over the over powered line simply because it's game breaking cause it erases the challenge in the game by using some mario power star to charge through no challenge.
So i feel base on my previous tries to create something extra for weapons/ gear in the game That has been heated to level 10, you should review my threads and try to improve on your idea cause from my experience op is never a good thing in a community base game that depends on the challenges they give you for their intake of revenue. Also, if you don't feel like doing the thread lookup yourself, i am more then happy to look em up for you and post them in this thread for you to view them.
On another note, why can we not follow another forumer, private message them, or block that firumer in the forums. This forum website really needs an update.