It looks like a quick hotfix has been applied to Ruby Life Pools on the weekly reset, nerfing the 2nd boss.
The 2nd boss fight Kokia Blazehoof encounter has been nerfed by reducing the periodic damage of the Blazebound Firestorm’s Inferno by 35%.
Kokia Blazehoof
Blazebound Firestorm
Inferno – The Blazebound Firestorm radiates flames that inflict 35267 Fire damage to all players, plus an additional 1763411462 Fire damage every 2 sec for 6 sec.