Typically, sword master or Blade and Soul tips kungfu master is assigned as the tanker. The boss has a rather standard normal attack pattern, although part of the skill sequence is random.
Head Swing x 2 > Head butt > 3 x Tail Swipe / Tail Slam
Head Swing x 2 > Tongue Strike > 3 x Tail Swipe / Tail Slam
Head Swing x 2 > Jumping Stomp > 3 x Tail Swipe / Tail Slam
Take note that Tongue Strike cannot be blocked. Tail Swipe and Tail Slam will only hit the party members behind (not tanker).
At HP 91%, 80%, 61%, 50%, 31%, the boss will roar and do a Big Jumping Stomp before summoning adds or spitting poison pit. This stomp cannot be blocked; use resists skill instead.
Take note that the tanker will Blade and Soul gold store also be poisoned constantly. Therefore, he/she need to attack the small poison egg every 30 sec to get the poison resist buff. However, he needs to do so with a ranged skill or a quick charging skill + SS so that he can get back to the center of the area ASAP.