Bestiary 4 | Monsters | Seaweed Siren | Special Abilities | Cacophony
A
seaweed siren's noises disrupt
spellcasting; casting within 100 feet of a
seaweed siren requires a concentration check (DC 15 + the level of the spell being cast). All other concentration checks and
Perception checks involving hearing made inside the aura have their DCs increased by 5. A
siren can begin or end this ability as a free action. This is a sonic effect.
