The Anniversary Cake Pokemon was awarded to those who have been registered on PokeHeroes for 1 year.
It is available since 2014 and can be obtained every full year you spend on PokeHeroes.
You could claim either a Cheese Cake Slurpuff or a Strawberry Cake Slurpuff, respectively.
|EHP:||EXP to level 100:|
|Egg group:||Mega Capable:|
|Cheese cake||Strawberry cake|
Anniversary Cake does NOT evolve.