Castella, and Elliana, were distracted from their attacks for a moment as the tiny terror, Mina, rushed past them toward the towering monster. The creature's massive fist came down like a thunderbolt, leaving a small crater in the sand, but Mina wasn't there. Stepping to the side, she hopped into the treant's lap and danced up its stomach to plunge the burning stick into its second eye. She was forced to jump back, landing between Castella, and Elliana, as flames erupted from the treant's face and raced across its body as if it were made of tinder, coving the monster in fire in short order.
The treant roared and rose to its feet, tearing loose from the vines protruding from is lower half. The vines holding Draanok, and Isaac, suddenly went limp, dropping them unceremoniously to the ground. Meanwhile, the treant batted and clawed at its burning body, tearing chunks of its bark of and flinging them aside in a blazing shower until it had removed the burning armor and stood there completely uncovered. Beneath the hard wooden armor was a white fleshy mass that expanded as the creature readjusted to being out of its shell. Its basic shape was still the same; a barrel shaped body supported on two stubby legs, with long spindly arms reaching near to the ground. What had changed, however, was its head. The creature's cranium expanded and stretched outward into a wide circular cap, almost like... a mushroom. Sure enough, the treant standing before them was no plant, but a fungus; complete with a toadstool cap for a head. One of its eyes was indeed put out, but the other, though singed around the edge, regarded the group with unabashed fury, as its now revealed mouth opened into a toothless roar, and the behemoth charged.
[Kei take a point of XP for that failed roll, which would have been Defy Danger. Angel, you're free so make the most of it. Now, what does the party do next?]