So far my best drop are the valkyrie powders haha, my AB only does 20m to Amdarais with Resu '-'. Then again that's such an overkill so i'm good xD
Won't do more than it's full HP + multipliers. 60 M was likely Ash exagerating. Unless you can stack, like +100% magic damage against undead, +100% holy magic damage, or something.