plˈeɪɚz kæn ɪnvˈɛst ɛkspˈiəɹɪəns pˈɔɪnts ɪn ðˌɛm təbi ðɪ ˈɛkspɜːt ˌɔn ðæt pˈɑːɹt ænd tə sᵻkjˈʊɹ sˌʌm fjˈuːtʃɚɹ ᵻvˈɛnts ɹᵻlˈeɪɾᵻd.
Players can invest experience points in them to be the expert on that part and to secure some future events related.