From PokéHeroes Wiki
Dunsparce was introduced as a new mega-able Pokémon through Event Distribution from 22/Feb/2020 to 03/Mar/2020.
|EXP to level 100:
- Dunsparce can Mega Evolve into Mega Dunsparce starting level 50 while holding a Mega Stone.
- Dunsparce can evolve into Dudunsparce or rarely into Dududunsparce starting at level 32. Mega-able Dunsparce cannot perform this evolution.