Dagannoth Mother (Blood Runs Deep)

The Dagannoth Mother fought during Blood Runs Deep is the daughter of the Dagannoth Mother from in Horror from the Deep. In the end of the quest, she can be found south of the hatchery in Waterbirth Dungeon, guarded by Dagannoth Sentinels and guardians.

Strategies
A great tip for this battle would be to forget using special attack weapons, unless you have a high hitting weapon such as some dragon claws or an Armadyl godsword.

She has similar damage immunity to her mother, except the melee damage has to be done with Balmung. The colour of the stripe down her back shows her current weakness. Players are also told in the chatbox when she changes colour.

When changing attack styles she generally tends to stay on her new style for a little while. This means that the player can avoid taking substantial damage by switching prayers. Her most lethal attack is melee which can hit up to 43.

A click-efficient way to kill her is to completely forget about using Ranged against her. Ranged is only one attack style and if players sacrifice more than two, they will not be able to kill her because she uses the two immunities to attack styles you don't have. Wield Balmung and attack her with it, which forces her to show the coloured stripe on her back which reveals her weakness. With this, turn on Autocast whenever she is vulnerable to Magic attacks and turn them off when she's vulnerable to Melee. If she's vulnerable to ranged, it's recommended to use Melee, so you don't waste money for Runes used. Melee Void Knight equipment is recommended for this "click-efficient" strategy.