Eventually it is going to stop attacking me and will only stand there

Knowing  OSRS gold this, I am still tempted to take the inefficient route, and train summoning. When I camp waterfiends, I receive better yields from my bonus xp aura, meaning I want to collect less total charms. I will find a better rank on the hiscores in summoning. If I slay for my charms, I save a large quantity of time required to accumulate charms, but I will likely have to use my charms without double XP busy. I guess I might just have an opportunity to rank within the top 100 players in summoning if I get 200m by the end of august. I can't determine what to do. Any info?

So, I have gotten up into the Dagonnoth Mother boss in the pursuit'Blood Run Deep'. It something that I should be able to perform, I have all of the gear for such a fight.

Now, the issue here is that I'll hit it with Balmung, taking off a a good chunk of it is health and after that it's colours activate. From there on, I can not do some damage. It'll just switch blue and even when I attempt to use water spell out (water tide ) it will just end up missing all of the time or without damage as well as the mother will en up continuously shifting from blue to red and back. I can not do any damage to either of these even with fire and water magic...

Eventually it is going to stop attacking me and will only stand there, leaving me trapped, unless I logout... Any help? The pursuit fight has been buggy as crap since the release of EOC. Before I did the pursuit in March someone told me in the Sals cc that they were able to finish the quest without using Balmung whatsoever. Personally, I was able to kill the Mother before cheap RuneScape gold even altered colours.