When Phantump sleeps during the day, it curls in and looks just like an ordinary stump. Some Trainers walk past entire orchards of sleeping Phantump without noticing. Phantump are incredibly hostile if they’re woken up too soon, so this is probably for the best.

There’s no sure way to tell how many Trevenant are in a forest; each tree that shifts when you’re not looking could be controlled or a Trevenant itself. Trevenant communicate with each other using underground roots, so they coordinate perfectly.