Mythic Raszageth has received some hotfixes nerfing the health of the boss and the Phase 2 shield.
Health Nerf
Mythic Raszageth’s health has been nerfed by 5% from 593M to 563M.
This will reduce the overall dps check needed to defeat the encounter.
Spell Changes and Nerfs
Blizzard has nerfed the Phase 2 shield by a massive 50% and also fixed some issues with pets on the encounter.