Typically they heal from necrotic energy instead of positive like living things. So a healing potion for a lich is effectively a vial of pain juice for something living.
Liches are undead, so that potion would probably rejuvenate necrotic flesh or it’s a strong poison to create more necrotic flesh. Both are not something supportive of living like a health potion would be.
DND Noob here.
Can liches use health potions? Thats not how they recover hp right?
Typically they heal from necrotic energy instead of positive like living things. So a healing potion for a lich is effectively a vial of pain juice for something living.
Liches are undead, so that potion would probably rejuvenate necrotic flesh or it’s a strong poison to create more necrotic flesh. Both are not something supportive of living like a health potion would be.