False Appearance. While the trapper is attached to a ceiling, floor, or wall and remains motionless, it is almost indistinguishable from an ordinary section of ceiling, floor, or wall. A creature that can see it and succeeds on a DC 13 Perception or Wilderness check can discern its presence.
Spider Climb. The trapper can climb difficult surfaces, including upside down on ceilings, without needing to make an ability check.
Smother. One Large or smaller creature within 1 meter of the trapper must succeed on a DC 13 Reflex saving throw or be grappled (escape DC 13). Until the grapple ends, the target takes 17 (4d6 + 3) bludgeoning damage plus 3 (1d6) acid damage at the start of each of its turns. While grappled in this way, the target is restrained, blinded, and at risk of suffocating. The trapper can smother only one creature at a time.
No concoctions, maneuvers, or spells
All monsters in this system should have maneuvers or spells. You should add some maneuvers or spells to this monster. If you do so, please make a suggestion on github so I can finish adding maneuvers and spells to all monsters via https://github.com/mlenser/kryx-rpg-issues/issues/9