While that is nasty, it doesn't get through even 15% of my armor and MR, just as before. It has more to do with this happening; Calculating the numbers with just BotRK and Sated at level 11, as with my Yi example in the other thread;
Devourer + Kayle's E on hit
Hit 1: +120 Magic Damage
Hit 2: +240 Magic Damage
Hit 3: +120 Magic Damage
Hit 4: +240 Magic Damage
Attack Damage and Shred per hit
Hit 1: 111.6 +3% Armor/MR Shred +8% Current HP
Hit 2: 111.6 +6% Armor/MR Shred +16% Current HP
Hit 4: 111.6 +3% Armor/MR Shred +8% Current HP
Hit 4: 111.6 +6% Armor/MR Shred +16% Current HP
231.6 +8% CHP at 100% Armor/MR
351.6 +16% CHP at 97% Armor/MR
231.5 +8% CHP at 91% Armor/MR
351.6 +16% CHP at 88% Armor/MR
At two items, A tank's Max HP, assuming current Randuin's And Banshee's, take for instance, Rammus, My main;
2460 HP
Let's take the armor and MR numbers from those items and Merc's Treads + base and factor those
143 Armor
125.85 MR
Hit 1 Physical damage = 126.91 after mitigation of ~59%
Hit 1 Magical damage = 53.13 after mitigation of ~56%
--Hit 1 Total Damage = 180.04
Hit 2 Physical Damage = 200.08 after mitigation of ~58%
Hit 2 Magical Damage = 108 after mitigation of ~55%
--Hit 2 Total Damage = 308.08
Hit 3 Physical Damage = 118.51 after mitigation of ~56%
Hit 3 Magical Damage = 56.4 after mitigation of ~53%
--Hit 3 Total Damage = 174.91
Hit 4 Physical Damage = 183.59 after mitigation of ~54%
Hit 4 Magical Damage = 112.8 after mitigation of ~53%
--Hit 4 Total Damage = 296.39
You are correct, that is nowhere near lethal.
I am left with 1501 HP, having lost about 40% to four AAs from a two item Jungler in exactly... 2.92 seconds.
The problem with Kayle, unlike the True Damage Junglers, is her ulti. Which gives her 2.5 seconds of uninterruptable action at level 11. This is more than enough to walk past me and deliver that damage with FAR less mitigation to any of my carries, given her movement speed buff and point and click damage + slow, there's nothing anyone can do but try to peel, as stated, I end up 40% HP down before the fight even starts, and I can only lock her up for pretty much exactly the duration of her ultimate with my maxed E.
The true damage junglers on the other hand will 100-0 me in 4-6 attacks. Depending on your jungle, that's 2.2 to 2.75 seconds. With animation Resets in Vayne's Kit, even faster.
Nonetheless you are correct and I retract my statement about Kayle fourshotting Rammus from even, or even behind on farm. She must have had a third item I didn't see, likely Nashor's. I mistook the attack time for 4 AAs when it was something like six and misjudged the situation then. I apologize.