Seems like the obligatory grumpig works nicely here.
Grumpig @ Leftovers/Colbur Berry
Ability: Thick Fat
EVs: 76 HP / 252 SpA / 180 Spe
Timid Nature
- Thunder Wave
- Taunt
- Focus Blast
- Psychic
Pig helps with threats to the rose + kingler core like rotom-f, rp regice, and hard-ish hitting psychics like mr.mime and kadabra. Colbur or Lefties depending on the rest of the team's ability to handle machoke and pawniard. Bulkier pig could work as well depending on which style we choose to build.