It is possible. Keith/Stella meta. Inspired by spidey's video, but using Keith instead.
Flames from Kitsunes and the Boss are kinda annoying, since they take 10 health from a drawing.
120k mana total when you have to move the Keiths (Around 10k to max each Keith and around 40k to max Balloon Pal and then Spectre). Try not to sell the Balloon Pals for extra damage.