Portentia boss in Sewers

Portentia in Toxic sewers uses purple slowing orbs that are just terrible. What kind of damage are they and is there a counter to their slowing action? Thanks.

She's based on Doedre. Purple is chaos degen. All of her stuff stacks. As with Doedre in the Toxic Conduits you should be able to reset the stacks with the valve.

Thanks. Does that mean if I "turn the valve" they will go away or diminish?

Too many boss you can just nuke it with dps.

This one, if your dps is low, it may cost you 1 or 2 portals.

Damage her, watch her teleport carefully, and turn the valve once a while. You can skip purple by turning the valve twice (valve has cooldown) but some people skip red instead

Thanks. I will go back and experiment. I tend to play lower dps melee characters so my fights go on longer than most peoples.

Also i think the cycle of red green purple is fixed (can't remember the exact sequence). Too many of any debuff of the same color are still deadly, just some people found one color is more deadly.

What i mean turn valve twice is. The phase is not purple but you want to clean the debuff, you turn the valve once, then you figure out it is purple phase, you turn the valve again.

I appreciate your help. How are the red and green different than the purple? Fire and poison?

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ChanBalam wrote:

I appreciate your help. How are the red and green different than the purple? Fire and poison?

red is increase phys damage taken? Green can't remember. Too often just nuke the boss

I'll go find out. :)

Green reduces your own damage output per stack. Purple is chaos degen + slow per stack. Red debuff from popping bubbles cause you to take increased damage per stack. I think max is 10 stacks.

The valve wipes all stacks of the current color and moves to the next color.

Engineering Eternity is a good source of boss mechanics...
https://www.youtube.com/watch?v=Im3_mkjpEoE

So with a lower dps character, just use the valve whenever you need to get out of trouble.