Or maybe ramp up, like it does physical for the first 3 shots and then does true damage. That way you can still dive towers, but you have to actually respect the tower a little, not just have Poppy auto attack the enemy once and then start focusing the tower while her team kills the team underneath it.
Reducing minion damage would help, but honestly I feel like towers should just have more armor in general. Even if it scales slightly, give them like +30 armor/mr that ramps up to +100 over time. That and just increase tower damage. In practice mode at 16 minutes, my outer tower has 180 AD, inner 206, inhib 206, nexus 190. Why is my Nexus tower weaker than my outer tower? Even if you just gave the nexus towers 1.2 AS instead of flat AD or give it more armor pen, it would help.
I also feel like there should be a bonus for being near your tower. Maybe that's where the bonus AD/AS/Armor/MR comes from or whatever, but if I'm standing under a tower and there is a tryndamere taking it without minions, it should do way more damage or take less damage since I'm trying to defend it. Maybe this could go with your "towers take no damage unless minions are nearby" to prevent people just face tanking to get a tower or increase the reduction to 90% if a ally champion/minion are there but no enemy minions.
Additionally, this update is kinda bs.
Pushing advantage: If the average level of a team is higher than the enemy's, their minions receive the following buffs:
- They deal 10% bonus damage to enemy minions. Apart from that, if the leading team has taken more turrets than the enemy, this damage is increased by a further 10%.
- They take less damage (flat) from enemy minions. The amount of this reduction is: 1 + (turret differential × level differential).
Apart from that, if the difference in average levels is 3 or higher and the leading team has destroyed two or more towers more than the enemy in a single lane, their minions become Enraged:
- Their bonus damage is increased by a further 90%.
- The flat damage reduction is increased by 7 more points.
So just because you are winning, your minions get better? So if you were losing a game, the lanes reset at river, and everyone in the game AFKed on both sides, you'd still lose just due to minions alone.
One thing I would like to see sorta off topic is have Dragon/Baron deal magic damage and have towers deal physical. It's kinda BS that your armor stacking tank can just tank anything he wants because everything deals physical damage. Obviously baron shreds armor and has his magic damage aoe, but still his autos are physical damage.