Update- Tyranitar
Evolved my second today to get IT/FB, I probably already know the answer and will most likely still power up to just collect in gym even though I don't need another defender but can I use it to attack anything and be somewhat relevant? I have B/C on my other I played Russian roulette hoping for B/SE but deep down I knew it was going to happen lol
Answers
B/C is dope as there are psychic legendaries in every current generation in the main series, and the short energy build up requirement may be advantageous over stone edge in PvP due to the fact that bite will take a while to generate energy for stone edge and will allow it to fire one off, if the other player puts a counter in while you'd otherwise be building energy for stone edge
And maybe articuno when it comes out? Most of the current prevalent ice types bar jynx are water/ice which take neutral damage to both attacks