As long as you hit the design criteria, you're allowed to go as crazy as you want.Just be warned that people usually don't vote for creature slot targeting, minimum-deck-raising pseudoquanta cards because it's just that: Crazy.
Can the card use quanta from the original element? (like Titan being an card that has an ability that uses quanta?)
Does the re-designed card have to also be a weapon, or can it be a creature?