>>50753170i'm not the best with balance, but i feel cyber would only really be given to porygon then get entirely new pokemon based around the idea of being digital.
i'm not a compfag so i wouldn't know all potential balance issues, but i'll come up with some strengths/weaknesses.
cyber would be strong against:
fighting - brains over brawn
grass - machines take over nature
psychic - reprogram the brain
cyber would be weak to:
bug - bugs & glitches obviously aren't very good for computers
poison - viruses aren't very good for them either
water - if you pour water on a computer you'll probably brick it