Hello everyone,
lately I’ve noticed that Sergei’s passive damage is different depending on mana charge level. According to the description of his passive skill the damage should be always 100 %, only chance is 50 % on 1x Mana Charge or 100 % on 2x Mana Charge respectively.
I discovered that the damage is roughly 150 - 200 on 1x Mana Charge, but only 50-80 damage on 2x Mana Charge. Here are 2 videos from the very same raid firing Sergei under the same conditions - take Uraeus as a “training dummy”.
1x Mana Charge = 180 damage (video on YouTube here)
2x Mana Charge = 70 damage (video on YouTube here)