UPDATED: Main Ability

Changed the flavor text for the Main Ability of the Dying Star to more closely match the gameplay meaning.

Added an option to have 1x ART even from the start to make it easier to understand.

To reiterate, I will share an example: Johnny sung "Never Fade Away" at the beginning of the session, the song written after a really productive session storming a SecCorp Tower. Last session, he chose this song title to symbolise his wrath and anger at losing his significant other. As such, the GM deemed it appropriate for the song to give him +2 AGILITY once performed. Since he performed the song at the beginning of the session, the bonus lasts throughout the sesh until he will have to Rest. Since he only performed one song, his MAX_HP is lowered by -1. Fortunately, he's already taken damage, so it doesn't matter: his original MAX_HP was 9 (and now it's 8), but his current_HP is at 5.

Hopefully that clears it up. I'll be updating it more if it still isn't clear!