DDD doesnt have to kill anything when you are edgeloving (my new jigglypuff-strategy term for working your entire game around the edge.). Seriously, get a lead, make them chase you, dont get hit with utilt/bair, and DDD becomes a big slow penguin that can't handle the puff. not to mention hes a giant humongous target, along with DK, snake and other tall people. plus, edgeguarding DDD's giant fat penguin body is so terrible easy to make up-B onto the stage, you should be resting him at 100 at LEAST one stock a match.
rethink your matchups bro, jiggs can win every matchup except metaknight, with people like gdubs, olimar, and maybe zelda being somewhat fickle, but doable. i would even think MK was beatable, if his upB literally didnt beat every possible action jigglypuff has (and kills her at just over 100 in the process)