Llamudwr

A frog-bodied horror lurking in still deep water, patient as rot, tail poised to strike.

Solitary, large, construct, corrupted, cautious, stealthy. Everyone knows to shun deep, still water, and the llamudwr (or "water leapers") are surely one reason why. Take the body of a frog, 6 or 7 feet long. Add another 8 or 9 feet of whipping tail, tipped with a venomous barb. Get rid of its legs, not even stumps, but give it bat wings, a span of nearly 20 feet unfurled.

HP 16 · Armor 4 (0 vs. bronze)

Attack d10+1 (reach, hand, grabby, messy, 1 piercing)

Instinct: To fill its belly and retreat beneath the water

Special qualities

clumsy when grounded
hates the sun

Moves

Lurk unseen, pick a target, and wait until sunset
Leap out of the water with shocking speed
Follow prey from the sky, or hanging from trees
Strafe its prey and deliver a painful, debilitating sting
Chomp down, and then swallow whole