Report says it overflows after 10 stacks, resetting the stacks to nothing lol.
For best efficiency yeah 3 times should be the most you stack (especially on hermit), always better to let your nuke go on cooldown because the stacking is linear unless you are waiting for major debuffs in a raid. Many skills have damage caps anyways.
Yeah, it is frequently used with sidewinder to boost killstrike damage, but if you are close to its max damage of 580k then you can use it with arrow rain instead. I usually stack it twice for arrow rain after the initial skill spam.
is there any trick to valkyrie's 3rd skill? most of times it just does sub-arrow rain damage for me, you need to fight one of the gimmick collab quest bosses with 10 dots to max it I think
Valkyrie's 3rd skill is based on how many diamonds the boss has, diamond's as in it's turns till it does it's ultimate. So if your boss is about to use his super skill, that's the best time to use it.
Not sure if any of the mods still support this community, but they should be aware that the forums are infested with bots and that their forum needs to be upgraded.