Does anyone know how to deal with monsters that have healing skills, like Unicorn or Fire Dragon? I don’t have enough damage to kill them, and the only debuff that gives anti-heal—poison—doesn’t seem to work on them even though I’ve tried it many times
Poison does work on both of them, though the unicorn removes poison when it uses its healing skill. The fire dragon just regenerates so much health per turn (I think its 2500?) that poison can just cut the regen down to 700hp(?) or so. Gotta burst them down, though the unicorn runs out of mana to heal after 4 heals if you keep it debuffed with confusion from the Horror spell.
With the dragon, I managed to get it after poisoning it then using the stone mind+lightning+art of lightning combo with the slime having bloodshot eyes buff and also using lightning. Unicorn can also be burst down, it only heals below half health. If you and slime are faster than it, not too hard to blast it down with fire after acid bomb takes effect.
Poison is actually insanely good against a lot of bosses now that I think of it, there is a reason why getting demon poison is locked behind a high vice decision...