Maintenance for the week of April 15:
• [COMPLETE] ESO Store and Account System for maintenance – April 16, 8:00AM EDT (12:00 UTC) - 6:00PM EDT (22:00 UTC)
Ravage Health potions deal damage to yourself. There are several versions. I recommend the UESP site for it, then you can decide based on cost and secondary effects what you want to make.