Will of the Emperor is a welcome relief from Elegon. It still requires some intense healing but the key to the fight is mostly in the tank dance and dealing with the adds.
This fight has two phases that alternate throughout – the add phase and the burn phase. While both of these cycle through, the tanks deal with the boss and doing the dance. The add phase is when different kinds of adds spawn and must be systematically dealt with by the DPS while the burn phase is when the entire room fills with gas and the raid takes AoE damage.
The key to this fight is pacing out the healing and cooldowns as required by the different phases.