Griffie transforms into a plant creature. Ey's about the height you'd expect for a halfling, if this world has those. Eir skin is a light, desaturated blue, fading to pink and then red at the tips. Eir hands have four fingers each and no fingernails. Where others might have hair, ey has a rosette of succulent leaves.
On eir head, ey has a bronze headband with green etchings, sprouting a few berries, with a moderate transmutation aura, and green glasses with opaque-looking green lenses and a faint divination aura. Around eir shoulders, ey wears a dark cloak with a faint abjuration aura. Eir armor looks leafy at a first glance, but is in fact leather lamellar whose scales happen to be green and somewhat leaf-shaped, and has a moderate transmutation aura. Under it, ey has a vivid chartreuse vest with a moderate transmutation aura. Under that, ey has auraless shirt and pants. On eir hands, ey has golden handflowers with a faint evocation aura, a ring with a faint conjuration aura, and a ring with a faint abjuration aura. Around eir waist, ey has a leather belt with an attached pouch, both of which have moderate transmutation auras. Ey also has an auraless sheathed weapon. On eir feet, ey has steel-toed leather boots with a faint divination aura.
(Unlike in the image, Griffie doesn't actually have a spring-loaded wand bracer equipped, because ey's been adventuring primarily not in eir base form as of late.)