Thoughts on my weapon concept for this skin?

When active:
+provides slight damage resistance on patient (around 1%~5%)
+buff increases slightly with uber (up to around 10%~25%)
- movement speed penalty on wearer (around -10%)
- heal rate penalty (around -10%~-20%)
- uber only builds with damage taken (around 300~500 damage)

Ubercharge:
Creates a projectile shield that blocks
projectiles and does small damage to
opponents (similar to MvM upgrade)

(Vote to add this weapon to the game!)