"The infamous enemy of Varrock."
||Life points: 40000
|Attack type: Magic
||Max Hit: 840
||Quest monster: Yes
|Fought during the World Wakes.
|Make sure Cres is with you before starting the fight. At the beginning of the fight, he Zemouregal spawn two blue portals on either side of the room. You must destroy these portals before you can begin to damage Zemouregal directly. If you attack him while the portals are up your attacks will not have any effect. Kill off some of his undead minions if you can't handle the amount of damage they deal - otherwise focus on the portals.
Once the two portals are down he will begin attacking you. Praying against magic is recommended. Red decaying portals will appear - don't stand near them as they will do damage over time. Otherwise they can be ignored. Once you get Zemouregal's health down to 50% he will spawn four more blue portals around the room and once again be immune to taking damage. Do your best to take the portals out quickly as they will spawn more undead. Once the portals are destroyed you can focus on Zemouregal again.