Slightly Misplaced Comic Book Heroes Case File #184: Firelord

A herald of Galactus that acts heroic during some periods when there are big cosmic catastrophes and then disappears afterwards.

Slightly Misplaced Comic Book Heroes Case File #160: White Tiger

A character who was something of a Black Panther borrowed a different Marvel hero name for a period.

Slightly Misplaced Comic Book Heroes Case File #139: Amazing-Man

A DC legacy hero that was retconned into the Golden Age after his creation in 1983.