Pai is a good tool to help with combos. The use of her is quite limited in other areas but can still make up for it. 5S is a 4hit move that gives you enough time to mixup in the event the opponent doesn’t push you out. Using this as oki is a lot more effective if done while in trump mode. Due to slow startup it’s not recommended to use 5S in neutral. The neutral tool would be 6S since it’s a huge upward kick. This can catch the opponent's super jumping in and also leaves them airborne for a brief moment, letting you potentially do an air unblockable. This move also creates a wall before the kick which can delay your opponent’s advance on you. Both tools have their strengths. Be sure to utilize them accordingly along with your character and make Pai work.
Decent combo extension and oki
Good anti-air with 6S
Slow startup on both moves
Pai rushes the opponent with a furry of attacks. There are 4 hits in total. The 4th hit blows the opponent away, or wallbounces in the corner. During startup she has a collision box which will prevent the opponent from passing through her. This attack will whiff in the corner as she goes offscreen.
Pai lunges at the opponent and attacks with a huge upwards kick. On hit, this launches the opponent high in the air. During startup she has a collision box so if the opponent is advancing towards you it will prevent them from advancing until she kicks.