The best theoretical typing in turns of number of weakness and resistances, other than ghost/dark which has no weaknesses but few resistances, would be a ghost/steel pokemon with levitate. It would have 4 immunities, one weakness, 4 sources of neutral damage, and 8 resistances
Yes. But Cledinja is a mix of Shedinja and Clefable; which means it also has magic guard which completely ignores the bane of Shedinja. If Wonder Guard doubled as Magic Guard, Shedinja would probably be uber.
Louis: When things go back to normal; Zoey, Bill, I'm giving you both jobs. Francis, Imma teach yo ass how to read! ~Left 4 Dead