Berykyulos(Or Berukyosu in the old world) is a Elder-threat Wyvern who is dangerously smart and is more durabale than a Kushala Daora, They have tendrill-like Whips from thwir wings that produce electricity or an alt method of attacking or both. They have a relative who has Dragon elemebt and is much deadlier than them, They are known for getting into every single territorial fights with other monsters