Stone Ruins

Causes more than 34,500 damage, reduces Parry Rate by 100% and Dodge Rate by 100 for 2 seconds.

If you are within 125 of this mob, it would be a good idea to be elsewhere very quickly.

If you are a Ranged DPS class, kill him at extreme range. If you are a Melee DPS class, Joust and kill him very quickly.