Halcyon
Marvel, mutant
- Also known as
A mutant with the power to keep a steady heartbeat. 'Human' name is currently unknown.
Appearances
- Iron Man #17 (642) — 2022-04-00
- Iron Man #18 (643) — 2022-05-00
Marvel, mutant
A mutant with the power to keep a steady heartbeat. 'Human' name is currently unknown.