I've always been a character loyalist.
Buddyyyyyyyyy.....
I can relate!
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is a great character in my eyes. That said, he's one of the few characters that kinda suffered noticeably in the change to Wii U, because he's one of the few characters that has a few big differences in a couple of his moves, the most prominent of which is landing lag on SH/FH Fair (on 3DS the landing lag is modest, in wii U it's laughably worse. Ftilt suffers exactly the same treatment). Still, you basically have a more reliable Villager Fair, a wonderful Bair, a Uair that seems to catch slightly less than it should but ohwellsies (still catches a lot), and a surprisingly decent Nair (and urghhh Dair but we don't talk about that.
).
The character benefits from being kinda small, he likes the extra mobility because Usmash is proooobably going to be one of his main kill moves. My favourite set is probably grenades, stealth burst, default upB and reflector, but I think his custom sets are pretty variable and MU dependent in more than a few cases.
I dunno, the character seems to have massive disjoints and traps, the ability to wall people out on a DHD-scale basis and doesn't suffer from the same killing issues as DHD, more or less.
I've always maintained he's likely high tier. Not that mid-high 30-char echelon everyone always talks about their character always being in to avoid aggression, I legitimately think he has the tools to make it into high tier with Villager and Wario-tier characters.
... That said I also wish he had more results so I could actually back up this claim.