Tabula Rasa | The Forgotten Experiments | Glory of the Aberrus Raider
To get "Tabula Rasa" from The Forgotten Experiments in Aberrus, the Shadowed Crucible you need to do the following:
Just before the final stairs to Forgotten Experiments is a tank on a platform. Click on the tank to release Nutraal.
you will want to mark Nutraal so you can keep an eye on his position during the fight.
Nutraal needs to be hit three times by the signature ability of each boss.
Neldris must hit him 3 times with Rending Charge. Do not stand on him, but rather have two of the marked people stand between him to hit him. You can hit him a maximum of twice per Rending Charge.
Thadrion must hit him 3 times with Volatile Spew. This is easy to bait onto Nutraal by standing on him.
Rionthus must hit Nutraal 3 times with Deep Breath. This is baited to where the majority of the raid is. This ability can be frustrating because Nutraal will often run out at the last second.
Please note that as of this video, the achievement tracker does not properly track this achievement, but you can look at the debuffs on Nutraal to see what he has been hit with and how many stacks he has.
Once Nutraal has been hit 3 times by the abilities, you can kill that boss.
If you are doing the full raid, be sure to go up the chain after this fight and clear the trash on this platform. This will be needed for the Echo of Neltharion achievement.
Music: Reed Mathis - Try to Catch This