Lava Lake's Kitava, The Destroyer Taking No Damage (Rare, Corrupted, Shaper Stronghold Map)

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jlj5237 wrote:

I spend all my map portals going in and fighting him with my Arc Totems and doing literally 0 damage the entire fight. My dps is not the issue here, I do these maps all the time. Not sure what happened this time but maybe its a known issue? Thanks.

Thanks for your report.
To make Kitava vulnerable, you will need to get close to him to trigger the Shaper dialogue, until then he will remain invulnerable.
This won't always be the case as there's multiple different outcomes of what will happen during a boss fight in the Shaper Stronghold.