The obvious answer is to keep Pot away from you with your long range pokes. Jumping slash, ensenga, 5s, 2s, and 5hs/6hs are all great at this.
Potemkin will try to get through your stuff with hammerfall and being able to take in one hit, so if you do see this coming cancel his standing pokes with coin so that you can get a two hit combo. Follow up as necessary.
If you jump up really high you can just throw frc divine blades and he can't really do much about this.
If Pot has meter and he's knocked you down, he'll try to bait your wakeup super with his 632146+HS, which he will totally be safe if it's blocked. Of course, he'll try to do a mindgame with his pot buster, so look out.