No idea where i first saw Jack of Hearts – he’s just one of those characters who pop up here and there in the Marvel Universe – he eventually had a decent run in the Avengers books a few years ago before being blown to smithereens – so due back to life any minute i expect. Initially his half blackened/scarred face was as a result of exposure to a new experimental fuel and the armour was created as a containment suit to prevent his new found powers getting out of control. At some point down the line someone decided to convert his original origin to a cover up story for his true origin as a half alien/half human hybrid to explain his powers and the scarred face (all the aliens were like that).
This is one of the simpler versions of his costumes but i still don’t think i’d like to draw that too regularly.