Bonestorm nova generates extra projectiles

When firing projectiles as a nova, bonestorm fires many extra projectiles than the channel stage. The extra projectile count changes based on cast speed, at 1 stage total projectiles changes from 10 to 8 by reducing cast speed by 15%. Maximum projectiles fired is 20, same as the normal bonestorm cap. Additionally, two projectiles will fire from the same 1st firing point.