Offensive Stats That Offer Defensive Values
Offensive stats are fine and okay so as long as they upgrade, for the most part, offensive values. Generally speaking - when somebody builds offensive stats they are risking survivability (should be) in hopes of crushing the enemy team with exaggerated amounts of damage. I realize that lifesteal ISN'T damage reduction in the most simplest term but if you look at it closely - it can be considered just that.
Example: 
A. Take 500 damage per second
B. Deal 500 damage per second
C. For every 500 damage you are healing 12% of the damage
D. For every second you are reducing 60 incoming damage just with BORK. Okay, this isn't so bad though - right?
Keep in mind, BORK isn't usually the only lifesteal item - and this isn't the only damage "reduction" item around either:
+ Runes (8.5 Attack damage, 13.5 Attack Speed)
It takes about 2 seconds to do about 3k damage.
Scimitar: 12% Lifesteal of 3K damage = 360 HP + 15% of 3K Damage = 450 HP.
So within 2 seconds you've healed about 810 damage thus far - this is excluding the damage that Draven has done with his other abilities. This isn't JUST Draven though.
same build excluding one item - blood thirster on Ashe, because it is just better on her than Deaths Dance, same runes and with a full rotation - She can do a full rotation Q and dish out about 4.2k damage. (4284) this is a full rotation with her Q and only her Q - no other abilities other than that. The total lifesteal factor is 32% so 32% of 4.2k is 1344 damage healed. Even if you halfed this with grievious wounds - she would still be gaining a massive damage reduction factor.
Draven: 3k Damage in 2 seconds Ashe: 4.2K In a full rotation (4 seconds using Q) Let's say that
Okay, keep that in mind - now I'll play Olaf. Same runes, same masteries - Same everything except for items:
Within 10 seconds Olaf can dish out about 6768 damage using all of his abilities and items:
,
,
,
,
,
.
Within 10 seconds Ashe will have done: 10500 Damage. Within 10 seconds Draven will have done: 15000 damage. (Keep in mind, this is excluding resistances.)
Olaf will reduce 68% of this damage within 10 seconds unless if they built Last Whisper item:
Ashe will deal: 7140 damage W/O 35% Penetration from last whisper - 10 seconds - All of these champions are benefited from 9+ ARMOR Runes. At lvl 18 - Ashe will have had 88 armor or otherwise 47% damage reduction from the enemy Olaf, for every hit BC reduces this for 5%. Draven will deal: 10200 damage W/O 35% Penetration from last whisper - 10 seconds - At lvl 18, Draven will have about 91 armor or otherwise 48% damage reduction from Olaf.
This means that Olaf will have done: 3180.96 Damage to ashe within 10 seconds! But wait, you need to reduce this with
! Phantom dancer offers 12% less damage! And so - that 3180 damage will be reduced by 12! 381.6 - 3180 = 2798.4 - For simple sakes - I won't be doing this for the 1% difference that Draven has.
This isn't all of the damage reduction though, even if these are base stats - Ashe will be healing for every second.
ASHE DEALS: 1 Second - 714 Damage + 228.48 Damage healed 2 Second - 714 Damage + 228.48 Damage healed 3 Second - 714 Damage + 228.48 Damage healed 4 Second - 714 Damage + 228.48 Damage healed 5 Second - 714 Damage + 228.48 Damage healed
(These factors are divided by 10 seconds)
OLAF DEALS: 1 Second - 279.8 + 41.97 Damage Healed 2 Second - 279.8 + 41.97 Damage Healed 3 Second - 279.8 + 41.97 Damage Healed 4 Second - 279.8 + 41.97 Damage Healed 5 Second - 279.8 + 41.97 Damage Healed
This means that: Ashe will have an above 100% damage reduction from the Olaf, he will never be able to hurt her so as long as she is auto attacking. And this is even lesser extreme as for Draven, because his DPS is higher with axes - however offers less utility for this team. These are what ADC items offer:
BURST + DPS
DAMAGE REDUCTION + DPS
sustain + Damage Reduction
sustain + Damage Reduction
sustain + damage reduction + Cleanse
CDR + Damage + Mana Sustain
Huge Amounts Of Damage - this item can boost the amount of effectiveness that your lifesteal has on you
- If you're using this item and you aren't Ezreal, you probably aren't even meta -
Are you Jhin? Then don't fucking buy it.
Suddenly you're able to waveclear entire lanes in half a second - because why not? Oh and by the way - you get a MAJOR boost to your lifesteal benefits.
My recommendation: Remove lifesteal, remove the RNG from critical strikes and remove the damage reduction from ADC's. They are very strong even in the early to middle game, ADC's seriously DON'T need very long to scale into the game. Assassins can't take them out in one burst - the support can prevent anybody from touching them and most meta adc's are jumping up and down and all around - doing the salsa. Stop nerfing everybody into the ground because of ADC's - I am seriously getting tired of going mid - then top - then jungle - then support - then back mid - then back top because Imaqtpie said: "Luladc2k17" Here's a new meme for you: "#Lulbuysomedefensiveitemsifyouwanttonotpoplikeajellybean" an ADC'less meta wouldn't kill anybody. This is just my point of view on it though - a class that builds strictly offensive shouldn't have this much damage reduction and reliability. They should pay for their strength.