Spades Slick, the guy from the Intermission and Jack from the trolls’ session

I dunno, after Act three everything gets longer and more flash heavy.  I’m not sure how he’d put Cascade into book format.

Oh boy okay, here we go.

Condesce: Trolls are off limits here since she can control them so I’m guessing John and Roxy as they could both easily dodge her attacks (John by turning into Breath and Roxy by turning intangible), maybe Dirk when he shows up.

Spades Slick: Karkat due to his past relationship with Slick and Jake cause he’s not in the right mental place to get into a serious rumble right now.

For the Dogs: Rose and Tavrosprite.  Tavrosprite may be able to commune with them using his psychic abilities and Rose using her advanced Seer powers would likely be able to predict teleporting.  Again though, like Vriska said, PM wants to beat up Bec Noir so Tavros and Rose might just be there to assist.  Maybe bring the Mayor too, idk.

Jack English: This guy needs tough fighters to brawl with him so  Dave, Terezi and Kanaya, maybe Dirk when he shows up, I’m not sure where to put him.

Jane will obviously be hopping  all over the place, and I feel like Arquius will stick with her to provide protection.  If not, I’d give him to Jack English because who’s tougher the Arquius?

I think Jaspersprite will stay with Jade because if Jade wakes he could instigate her into chasing him again and keeping her away from the Condesce.

This is all speculation, and I’ll probably end up being way off, but who knows

It’s Biscuit’s juju.  Spades Slick got it when he gathered the Felt and started leading them.

Actually Dirk built Squarewave and Sawtooth himself.

Yes

Roxy was raised by the carapacians which was said by Dirk here. The details of Dirk’s childhood are left unmentioned. 

Jack’s body is a portal to the Green Sun so she leaps through him to the Green Sun. 

Yes, Mod A’s answers aren’t always exactly spot-on and they might be a bit opinionated, but it’s just because they’re new, they haven’t gotten a chance to learn everything yet. I answered things the same way when I started, granted we didn’t get nearly as many asks back then. Part of growing as a Mod of this blog is occasionally answering something wrong and having someone correct you and then the next time you can answer it right. During my time as Mod I’ve had this happen more times than I can count, hell it still happens every now and again. Homestuck is a complex tale and it may take a few trial and errors before you can explain something properly. Just give Mod A some time, their answers may not be as detailed or accurate as mine but I’ve had two years to hone my craft, I have faith that they’ll pick it up pretty quick.

She appears in [S] Make Her Pay and [S] Wake.