You may or may not have missed something, yes... :P
Spoilers:
In the cascade, scroll down to ascension > the protoform > amoeboid movement
You'll unlock a stat later that makes you no longer need this skill :)
Oh, I disregarded that because it sounded like it was referencing something I didn't have yet.
But now (given the context of your advice, thanks!) I'm realising I misunderstood and it's saying I have that thing equipped. I assumed I didn't as it hasn't made any reference to equipping things like that yet.
Ooh, last section definitely requires a bit of build crafting, especially if you're doing the purple route (unless you max it out). Some hints would be:
- make sure you're completing tasks (bottom right blinky, those give bonus xp)
- the final skill for each stage in the ascension tree is very powerful, and you'll probably need to have one equipped (depending on which route you want to go) and synergize with it to beat the final boss
- final boss activates their skill at 75%; bursting is definitely an option!