Well, refusing to hear the word of people below Plat 5 certainly does limit the possible feedback you can get.
Oh well, I'll say something anyways.
As a LVL7 Darius, perhaps I can give you some clarity on his gameplay.
Darius is classified as what is known as a Juggernaut. Juggernauts can be described as follows:
Juggernauts are melee titans who relentlessly march down the opposition and devastate those foolish enough to get within their grasp. They are the only subclass who excel at both dealing and taking significant amounts of damage, but in turn they have a tough time closing in on targets due to their low range and extremely limited mobility. (Taken from the League of Legends Wiki)
Based on that description, we can see that Darius is indeed meant to deal large amounts of damage as well as tank it. But it also tells us his weaknesses. Even though you decried them as useless, Ranged is really the best way to go to beat a Darius. I've faced my fair share of competent ranged opponents who have promptly made me useless as a Darius, because they know my range is extremely limited.
In regards to "He can zone you at LVL 1/ Can kill you by right clicking 5 times", that's because he is meant to have a strong early game. His Bleed, and the free AD from Noxian Might (Which is only granted AFTER getting 5 stacks on a target) are mainly what grants him that. However, as the game goes on, and by lategame (As long as he hasn't gotten fed) his threat is significantly reduced, because by that point, your ADC SHOULD be built up enough to kite and burn through him faster than he can burn through them. Darius thrives (All Juggernauts do, really) in EXTENDED trades. Meaning, the longer the fight goes, the stronger he (And other Juggernauts) become. Keeping trades short and sweet prevent him from getting his 5-stack powerspike.
Next, let's go through his quote, "retarded abilities" one by one.
Passive: AA's make the target bleed for 5 seconds, stacking up to 5 times. If all 5 stacks are applied, he is granted Noxian Might, greatly increasing his AD for a brief time.
Pretty straight-forward, you are dealt a DoT for 5 seconds, with the amount dependent on the number of stacks as well as Darius' current level. If all 5 are applied, he gets increased AD for 5 seconds, also based on his current level.
Q: Darius swings his axe in a circle after a 0.75 second delay, damaging all units struck. He is healed if he hits a champion with the blade (The outer circle) for 12% of his missing health, up to a max of 36% for 3 champs. He deals only 35% damage, does not apply a stack of Haemorrhage, and is NOT healed, if he only hits them with the shaft (The inner circle).
To massively reduce this ability's damage output, make sure you are right next to Darius when he uses it. In other words, in the INNER CIRCLE of the area-of-effect. This means he will deal massively reduced damage, and will not heal from it either. This is Darius' bread-and-butter ability, what he uses to poke as well as win trades via the sustain the outer circle grants if he can land it correctly. If you can prevent him from getting the heal and increased damage, you are at a much greater advantage, as he obviously just dealt much less damage to you than you are going to do to him.
W: His next AA within 4 seconds of activation has Increased AA range by 25, deals increased damage, resets his AA timer, slows by 90% for 1 second if it connects. Half of the CD as well as the Mana cost is refunded if the target is killed by this skill.
Note that the operative word is IF. If you can stay away from him after he activates this, you just made him waste his mana AND his time trying to get you with it. It is often used after pulling you with his E, to slow you and ensure that his Q's outer circle will hit you.
E: Passively ignores a percentage of armor. Activating pulls in a cone-shaped AOE towards him and slows the target briefly.
This is what makes Darius effective against armor-stacking tanks. His E also constitutes the lion's share of his CC, as while the W slows you, it's not guaranteed to hit, and neither is this ability, really. But it is more reliable for the Darius player than the W is.
R: Deals true damage to the target, increased by 20% for each stack of his passive on the target. Killing them gives him a 20 second window in which he can recast it at no cost.
Ahh, the famous Darius Dunk. You mention that he, quote, "gets a true damage execute ULT that will hit you for at least 500 TRUE DAMAGE as soon as he hits 6" but while the true damage execute part is true, the idea of him dealing 500 damage at lvl 6 is NOT. While it varies depending on how you build him, the max damage a Darius can do at a LVL 6 ult is around 300, give or take a little bit. By the way, that INCLUDES while his Noxian Might is active at Lvl 6. The tool-tip even tells a Darius how much the max damage is will be. That calculation INCLUDES the AD from Noxian Might.
So there it is.
