I’ve been struggling a lot with settling for a Classic LB & CN design, but I think I finally have something I’m happy with! As well as a general idea of how I’d rework their power sets.
Ladybug has many tools and gadgets at her disposal—all being retrieved from her seemingly bottomless backpack as well as some smaller weapons that come attached to her wrist device.
But their usage isn’t infinite, as each device will drain from her overall battery charge (faster or slower, and in larger or smaller chunks depending on the device). When the battery reaches Critical Level, all her devices become more erratic and ‘explosive’ due to overuse (can be a hindrance or used for an advantage). And when the battery’s been completely depleted, Mar has minutes before she’s forcefully detransformed.
Being forced into a detransformation isn’t ideal as that leaves both Tikki and Marinette very tired and worn out, and they won’t be able to transform at all for a few days. It’s more advantageous to detransform as soon as they reach critical level to recharge properly, but sometimes, it can’t be helped.
Félix has a similar energy source as Chat Noir that he calls it his mana levels (neeeeerrd!). And while Mar can keep track of her battery with exact precision through her wrist devices, Félix only has his own gut feelings and the glow in his staff to tell how much he drained his mana. That is, until he reaches his own critical level, then it becomes clear he’s nearing his limit.