At the expense of one power gauge, you can choose to perform a Guard Cancel Blowback attack. This move will cancel your blockstun, and you will perform your CD attack for strongly diminished damage. This will quickly get someone pressuring you off your back.
Strategy Corner It can be quite difficult to punish Guard Cancel Blowbacks for the attacker, but it is in fact possible. If you expect your attack to be countered with a Guard Cancel Blowback, you can cancel this attack into a special move with plenty of invincibility and it will go straight through the Guard Cancel Blowback.