The Wyvern can see without relying on physical sight. Anything not behind Total Cover (including invisible creatures) is visible to the Wyvern even when it is Blinded or in Darkness.
If the Wyvern takes Thunder damage or becomes Deafened, it is Blinded and loses Blindsight until the end of its next turn
- •Rend.1d10+2.
On damage: If target is medium or smaller, it becomes Grappled. Wyvern cannot Rend another target until this grapple ends. THEN:
- •Stinger.1d6+2.
+9 poison damage.
- •Howl.
DC12 STR save. Cone 3. Failure: 3d8 Psychic & Dazed 2. Success: Half damage.
Smaller than most of its kind, the cave wyvern usually lives deep underground. Blind, the cave wyvern relies on echolocation – and can even emit a horrible, subsonic howl that leaves its prey staggered.
Shards of Corruption - Bard's Delivery