hey, odd request but i want some ideas for side effects if someone were to drink healing blood, I'm in a setting where nothings nice and dandy, potions labeled "Fear resist" cause you to have hallucinations of your worst fear, people are out for themselves, monsters amuck, and healing potions have terrible consequences.
Heres the deal, in this system health potions aren't a thing, and in this (fantasy) setting just about everything is here, from vampires to cthulu. so i want to give my players (who have been taking a real beating without a party healer) a way to recover. heres what i ask. Come up with some kind of origin for the potion and what the side effect might be.
Ex: the potion is the blood of an immortal, drinking it causes extreme regenerative qualities, however shortly after the effects wear off your body becomes immensely fatigued and you find it hard to move.
or make it even more extreme and say after drinking it you go into a state of madness acting crazy like the immortal who's blood you drank.