Towers need some buffs

I would like to suggest A buff that works only when Allied champions are near. For example if 1 friendly champion where under tower the damage dealt to champions would be 110% Scaling up to 150% with 5 champions in tower range. Or it could also be an attack speed up that works only on enemy champions (not minions) that again scales with the amount of friendly champions under tower range. This won't solve the issue of the towers being knocked down faster than a house of cards but it would at least make it riskier early in the game to dive. Since the tower could have increased damage or attacked speed or both.

Thoughts?