Idea On How To Fix The Shield Problem

So shields are a huge problem in league right now so I have an Idea on how to fix them.

+400 mana +100 ability power Unique: +20% cooldown reduction Passive Unique: Kills and assists restore 20% of your maximum mana Unique: Dealing magic damage to an enemy champion below 35% health inflicts Grievous Wounds icon Grievous Wounds to them for 8 seconds. New: Dealing magic damage to an enemy champion below 35% health penetrates through shields dealing 50% damage to their health and 50% to the shield.

+15 attack damage Passive Unique – Executioner: Physical damage inflicts Grievous Wounds icon Grievous Wounds on enemy champions for 3 seconds. New: Dealing physical damage to an enemy champion penetrates through shields dealing 50% damage to their health and 50% to the shield. Ignites an enemy champion, dealing 70 - 410 (based on level) true damage over 5 seconds, applying Grievous Wounds icon Grievous Wounds and revealing them for the duration. The Sight icon sight will not reveal stealth champions. New: All shields on this unit are half effectiveness