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In my opinion, the most zombie-like Pokémon is Sableye. Its appearance, pose, and moveset all suggest that it is. I mean, Recover, Knock Off, Seismic Toss, Endure, Fury Swipes, Poison Jab, Sucker Punch, etc.
What you have to do is go by the gsc special (attack or def) that matches the original rby special stat of that pokemon, then play around with the other special stat until you get a matching iv (spa and spDef ALWAYS match in gsc to maintain backwards compatability with rby)
i played a dragonute once. it was a major disappointment :/
no matter how heavily i invested in his VIT and DEF he could not tank nearly as well as i desired
i felt like he died a lot more than my brawler (this is back on normal mode when he could take more than three hits with dying) and priestess and dealt a lot less damage. eventually i just gave up on him. :<
as soon as i saw your avatar i was inspired to pick up my old knife brawler again and get him through advanced mode
i've never been quite sure how to feel about the guy
his specials are unbelievable, bosses never last more than two hits against it
but his regular attacks deal pitiful damage and miss all the time, no matter how much DEX i pile on :/
they'd be good if they actually landed consistently, 'cause they're so rapid most enemies can't react between blows
and he can't take more than three or four hits without dying
if not for his hp regen ability i don't think i could stand to use him
but the special attacks, dear god. it almost makes up for everything else