Of course, you can use the Magic prayer protection, However, when Nemesis sees that you using Prayer protection following a few hit Nemesis, it's going quit using wind attack and begin utilizing Energy drain (Green powders on OSRS Gold your own teammates, Draining around 50 Prayerpoints a 5 seconds) Although you and your teammates can stop it by Attacking Nemesis hard with no hitting you draining your prayer points.
If it gets to 1000 Hp, It'll stop using Energy drain and rest it wings, getting on the floor for ultimate Melee battle. Nemesis doesn't walkIt runs very quickly (probably 2x your Running speed) and begin attacking you with a Slash attack each teammate, Hiting around 60. (It will switch to another goal as Nemesis strikes ) You can still use Melee prayer protection in the event that you still have any after Nemesis' Energy drain.
Once it gets to 600 Hp, Nemesis will get off the ground using its wings again and start trying to find a Goal to attack with the 2nd Hardest part of Nemesis' power. Once it finds a target (teammate) It will fly fast and grasp one of your teammates and start a Time limit. You and your Teammates must hit 100 Hitpoints before 15 Seconds is upward, If you don't make it, The individual that has been gripped from the horrible monster will probably be banished (One hit kill) back to lummy. Nemesis will replicate again using a new teammate to grip.
As it (hopefully) gets to 300 Hp, you are going to Old School RuneScape Gold be facing the most hard part. There will be another cut-scene as you get Nemesis' Healthpoint into 300: Nemesis will fall to the ground and it will get very mad by thumping the ground. Its wing will start wide and start flying bigger and swirl around to your team and get started charging a ball that is dark.