Shouldn't anti-shield mechanics be introduced to items rather than specific Champions?

Giving those anti-shield mechanics to Renekton and Blitzcrank feels like Riot's just shooting spitwads at an idea board. It'd make a lot more sense if a new item were added to give anti-shield mechanics, or an existing item were altered to include such. Even if it's easier to balance it by localizing it to specific Champions, the problem with that is that players could always use their bans on shield-killers when they pick Janna. Should there be an anti-shield item, or is that impossible to balance?
Report as:
Offensive Spam Harassment Incorrect Board