My team:
Cucumber from Cucumber Quest
Oops from Oops Comic Adventure
Sigma from Postcards in Braille
Oops & Sigma immediately have communication problems.
Oops and Cucumber would probably both JUST BARELY survive, by accident, or by managing to use their magic correctly at the last minute (by accident).
Cucumber & Sigma are both likely to pull an Undertale and survive by making friends with everything that isn't mindless.
I think I'd....................survive, but it would involve a LOT of us grabbing Sigma and running away from everything.
But despite having few physical defenses, I think a team with this much levity and hope would come out with significantly fewer mental scars than your average zombie fighting team, so I'm okay with that. :>