Caltrops Limit

20 is not enough.

So with basic spear throw support with multishot and caltrops, it already create 9 per skill use, 20 feel really strict.
And there is also chance to get 2 extra projectile while moving, you will create 25 caltrops per skill use, then each time it happened it just remove all the existing caltrops. Sometime they got remove before they can do anything.