He is not difficult to fight as his attacks do not hit for very hard but he does have 2 skills he uses often. One is an aoe roar that adds the debuff of -200% moving speed and the other is an aoe confuse that confuses everyone for 12 seconds. The problem is that if he confuses the tank, after 8 seconds have passed he will run away. A way to counter this would be to deliver stuns to Hugel until the tank is not confused any longer.