If it seems viable I will add this to the list of campaigns that I'll eventually get around to.

But I was thinking all players sorta start at level 3 and get a mcguffin that essentially acts as an omnitrix. Maybe get 3 classes with a subclass at the beginning, that gets what ever they get naturally by level up, that essentially looks like a monster, just more vibrant, hinting towards what it can do.

Maybe every 2-3 levels gain a new monster, represented as bosses to fight and gaining their DNA. At level 6 they gain the ability to pick 2 monsters, and it be a coin toss as which 1 you get. Maybe making it based on a dice roll until lvl 9, where you finally under stand its base functions and can choose what you turn into and making sure no 1 has the same subclass. At 12 give them the ability to switch classes mid battle? Maybe at level 15 give them like ultimate forms. Have them face the big bad and have the game end at level 18?

How long would transformations last? 1 battle long, and outside of battle 1 hour long? With a 30 minute to 1 hour cooldown?

I think the monsters should essentially have to function as that class and subclass even though it looks like a monster or sentient being, with only that races perks. Like a satyr college of creation bard, or a minotaur oath of conquest paladin?

Idk it's probably a dumb idea what do yall think?