Wildshards with ember fusillade procs per click instead of per cast

As stated above when using ember fusillade with wildshards the chance to fire 8 projectiles is based on clicking and not casting. If it does proc then there is a 100% chance to spawn 8 embers so long as you hold the button. If it doesn't proc on the first cast it will not proc no matter how long you cast for. This makes the optimal strategy to click every cast instead of holding the button and makes it rather unfun.