What if whe give Ohmwrecker more power towards his function

Ohmwrecker is a item this only good in one situation namely diving turrets. But because the limited use for this situation to be apear the item just isn't worth it's gold. I think it's time to realise whe have to give it something rediculus strong in order to see an usefull situation for paying this amount of gold. This idea is this:

Unique Active: The first nearby enemy tower Prevents nearby enemy towers from attacking for 3 seconds (120 second cooldown). Enemy Champions near the target are stunned for 1.5 seconds [400 range]. This effect cannot be used against the same tower more than once every 20 seconds.

This is offcourse an extreem big buff for the item. But it still gives the limitation that it had before namely it can only be used in one situation. You can only use it offensively and when your not in the situation todo this. This item will be not worth it's gold. It's similar what they did with . They gave it magic immunity. Everyone claimed that it would be broken. But after some testing in the game itself. Whe realised something OP can be ballanced if the limitation prevent it from going out of controle.

What the item would provide is earlyer pressure on turret diving even if your team isn't tanky enouge to pull it off. Before the item was worthess in that situation since even if the turret stopped attacking the enemy would just kit back and you didn't manage todo anything with it.

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If it really seems to become to strong whe could change it to a heavy aoe slow but it feels that a slow would punish more the direction of immobile tanks that anything else. I just think the stun is worth testing.