Wasp swarm

Wasps often colonize crinwin nests, living symbiotically among them so the nests thrum and buzz ominously. A single sting hurts like the dickens and takes effort not to cry out. When a swarm engulfs you, take 1d4 damage (ignores armor) and you're wracked with pain; doing anything other than curling up and writhing means Defy Danger, likely with CON. Each subsequent swarm hit increases the die one step, up to d10.

Kind Environmental or Procedural Threat