Carmen does cost five, though, so the rest of your deck should be filled with equal amounts of recursion (Sevinnes Reclamation et al), ramp (Ancient Tomb, Sword of the Animist) and evasive bodies that can also grow tall (Voldaren Bloodcaster, Liberator, Urzas Battlethopter, Serra Ascendant)
Deharme Misprints in Magic: The Gathering are cards that came out of the factory with physical mistakes things like bad cuts, ink problems, or alignment issues that happened during the actual printing process
A Rush ability lets him take an immediate offensive, which can then be backed up by the ability to ready after banishing other characters in challenges
Second, you need a discard outlet like Tortured Existence to get him from your hand into the graveyard