If you launch them with the lighting and waterball you could try this on your opponent:
DB2, DF3 (let them hit the ground then) B2,1+2,4,3, DF3
If your opponent doesn't block in time, follow up with: DB2,1+2, 4,3, DF3 and loop
If your opponent blocks:
throw or follow up with B2,B3
This will reset the projectile. if they fail to hit block immediately after they hit the ground you continue the string.When they do decide to block it, immediately throw them. You can always substitute the waterball with an ex version if you are able to shut down their ability to breaker. Just be careful not to actually combo the B2,1+2 with the waterball and you can repeat this.