[D4] Expanding end game with territory systems and world customization

I had an idea about D4 Shared Skills. I think some skills could have a passive and an active effect. For example: 2h weapon mastery could allow a class to use 2h weapons (fixed passive effect) and reduce the equipement requirements of those items (passive effect that increase with skill level) and as an active effect it could work as a 2h weapon melee skill (the damage increase with skill level).