Whenever I'm using Combo Drain, the drain amount always goes over my MaxHP. So, when a boss decides to use the 1/1 skill of doom, he ends up doing me more than my MaxHP and I get OHKO'd.
If you can't understand what I just said, it roughly translates into this:
Combo Drain over-heals me, so I have 9k / 8.6k HP. Then, when a boss decides to use a 1/1 skill, it hits me for 9k, not 8.6k. Apparently the extra HP is just for show, as I get OHKO'd. I don't have a screenshot since bosses lag a lot, but I've run into it enough to make me die in every single bossing run I was ever in.
Apparently you can get past this by not using Combo Drain, but that would suck since if you don't have a bish, you're wasting extra pots. Please try to fix this if you can. Dying on every single boss run isn't fun.
- iPrince