training grounds

[Nyaa]

can anynyan say what it does cause nyaa is too stupid figure it out

[Jerry]

The building generates a certain amount of hero experience over time. You can use that to level up your heroes (relevant for battles).

[Nyaa]

nooo nyaa meant the fighting against the training dummies

[Shamahan]

The training grounds stage does not give any benefits, it's only there for team testing purposes