Add a support item to buff turrets. Perhaps even change Ohmwrecker.
So, this may be an anti for most people. But I for one hate seeing people walk away with like 5hp from turret after 4 man ganking. And I hate it when my turret attacks the tank for 5 minutes and does 0 damage rather then the ADC.
On a sidenote my suggestion is for this to be a passive of a larger item. I'd love to see a big change to Ohmwrecker including this.
So here's my suggestion: New item. 1000-1500g. Allows the one who bought it to target the tower onto someone. Same damage, Same attack speed on turret. No additional range. 90-second Cooldown. Item lasts for 8 seconds or until target is killed or out of range.
Or, we could go with a more direct, but I find more boring suggestion: +25 damage to turrets (+25/35/45/55 as turret heats) +.2 attack speed (+.3+.4+.5+.6) Item still lasts for 8 seconds.
While this might slow down the game some I think it'd make people just a bit more scared of the big turrets in front of them. Because right now let 's face it, they're a pretty bad joke.