Tamiel was a Grigori, a rogue angel that fed on human souls. He and the other Grigori started out as an elite squad of angels who turned bad and were believed wiped out. However, Tamiel and some of the other Grigori secretly survived and started feeding off of human souls while putting the human into a dream state of their perfect Heaven. Tamiel did this for thousands of years under a variety of different names.
For fifty years prior to 2015, Tamiel set himself up as a faith healer in Tulsa, Oklahoma under the name Peter Holloway.
Powers and Stats
Tier: Likely 7-B
Name: Tamiel, Peter Holloway
Age: At least millions, if not billions of years
Classification: Angel, Grigori
Powers and Abilities: Superhuman Physical Characteristics, Matter Manipulation (Cellular level), Energy Manipulation, Telekinesis, Pyrokinesis, Photokinesis, Smiting, Astral Projection / Dream Walking, Immortality (Types 1 and 3), Regeneration (Mid-High), Invisibility, Telepathy, Teleportation, Healing / Resurrection, Soul Manipulation, Time Travel / Chronokinesis, Mind Manipulation, Time Manipulation, Power Removal, Immune to Time Stopping, Immune to Soul Manipulation as he doesn't have one, Time Paradox Immunity (Angels are immune to the effects of rewrites in the timelines)
Attack Potency: Likely City level (The Grigori are an elite class of High-Level Angels, and thus should be superior to regular Angels such as Castiel. Defeated a somewhat weakened Seraph Castiel in combat)
Lifting Strength: Class 5
Striking Strength: Small Building Class
Durability: Likely City level in host (Regeneration and his nature as a Non-Corporeal being in True Form make him very hard to kill)
Range: Town level with most abilities, Universal via teleportation
Standard Equipment: Angel Sword
Intelligence: Superhuman Intelligent due to his age and nature as an angel
Weaknesses: Angel Blades, Holy Fire