That's how I felt on the last boss of Armored Core Fires of Rubicon... Had to have lost 30 different times. Different Mech configurations, different weapons, tactics. But when I finally beat it, Ah, bless....
The soreseal is actually an improvement to your survivability as well as damage as long as you are under the vigour soft cap, as the extra damage you take is lower than the extra health you get from the +5 vig
Jesus this gave me diabetes...I feel like when the Grinch got the present from the little girl at the end of the movie. This is to wholesome. This clip could save the world if the world leaders would only partake
Sorry ironmouse but Rennala is legit the easiest and squishiest boss to mirk. But considering your play style, I can understand why you lost. You gave her way too much time to cast instead of just whaling on her.