Here is an idea to fix tank power curves:

Right now pretty much every tank/juggernaut has an extremely powerful early to midgame, but they fall of so hard late game because of stuff like This is due to tank items being cheap, but not giving much in stats in comparison to carry items, which are expensive and give more stats. I propose we make tank items more expensive but give them more stats to compensate, we can also increase some other damage items costs, especially the jungle items. Here are the suggestions: Cost: 2625 -> 3500 AD: 65 -> 75 CDR: 10% -> 20% Cost: 2625 -> 3500 AP: 60 -> 100 Cost: 2625 -> 3500 Attack speed: 50% -> 75% On hit damage: 4% -> 5% Cost: 2625 -> 3500 HP: 400 -> 500 %HP: 15% -> 25% Cost: 2900 -> 3700 HP: 500 -> 700 Armor: 50 -> 70 Cost: 2900 -> 3700 HP: 500 -> 700 Armor: 60 -> 75 Crit damage reduction: 10% -> 15% Cost: 2900 -> 3700 HP: 500 -> 700 Armor: 50 -> 70 Cost: 2700 -> 3500 Armor: 90 -> 130 Cost: 2350 -> 3750 Armor: 100 -> 170 Cost: 2800 -> 3700 HP: 500 -> 700 MR: 55 -> 80 Cost: 2450 -> 3500 HP: 350 -> 550 MR: 70 -> 100 Cost: 2850 -> 3800 HP: 800 -> 1000 CDR: 10% -> 20% Base HP regen: 200% -> 300% Cost: 2500 -> 3500 HP: 500 -> 800 Mana: 300 -> 500 Cost: 2700 -> 3700 Armor: 55 -> 80 MR: 55 -> 80

I think these changes will normalize the power curves of tanks and juggernauts by making them easier to handle midgame, but much harder to handle late. This will also discourage building full ad or full ap comps. This will also help dps based adcs because they can slowly take down these behemoths with enough protection from their team.