For someone so cold, you're blazing hot.
_ A I _
Theme: Names
Lifes:

(+1 mercy life for CRbae's sake, +1 because I'm feeling nice)
Guess: Four, A E R I M B
Gusrs: CRbae (1) RUtaurete (1) wee3(1) Propheon (2) ScIence Guy (1) Frozengaia (1)
Hint: A very niche name that acts more like a hidden identity/codename. Don't guess according to conventional word patterns.
Bonus Hint: Guess a letter in my name. It's part of the answer. (Yet to be guessed)
Bonus Hint 2: The 21st Greek letter.
Bonus Hint 3: The answer to my first hangman is heavily relevant to the name.