Here is some ladder heat I built for your RTT Ubers. I used a similar team structure when I originally peaked the ladder back in March. Both variants of PDon work just as well, take your pick. Enjoy!
Eruption PDon Variant: https://pokepast.es/f99d8eee85f3d2d3
Dual Dance PDon Variant: https://pokepast.es/4a9f1b89afb4267a
Eruption PDon Variant: https://pokepast.es/f99d8eee85f3d2d3
Dual Dance PDon Variant: https://pokepast.es/4a9f1b89afb4267a