Idea for juggernaut enchantment

Juggernaut +500 hp +10% cdr +35% tenacity

Unique Active: Bladed shield(self activation) - Upon activation, shields your champion for 10% of your max health. While the shield is active, any enemy attacking your champion receives damage = to 5% max hp (200 cap for monsters)

Upon destruction of the shield, an explosion of blades hits an AOE around your champ damaging all enemies in the area for 10+(champion levelx5) 60 second CD

This would give the juggernaut some much needed help in clearing those strong camps in the jungle, and also really boost your early game presence as a tank jungle with no real good sustain.

The aoe explosion part is subject to change, of course, to help preserve some balance.

What do you guys think?