items are the reason juggernauts are "stat check" champions*
because instead of having items that offer us options and ways to itemize to overcome weaknesses, we get stats. lots and lots of raw stats. juggs remain the only group of champs who has no itemization to help them overcome key faults in their kits; when you give them nothing but lots and lots of stats, do you expect them to do anything but try to hit you with those stats?
the nature of a juggernaut kit is and will probably always be very limited; they are immobile, so long reaching dashes and hopping over walls are out of the question; they are melee, which means they'll usually have low sphere of influence (Illaoi breaks this rule); and they are low utility**, which means they get damage. despite this, they manage to be the most unique and varied group, but they will always struggle with the way league handles their items, which is to give them... lots and lots of raw stats. the solution to pulling them away from "i'm just going to run at you, hope i can get to you past all your myriad CCs, and hit you with my stats" should therefore be towards new items that let them trade stat efficiency for overcoming weaknesses (and their two biggest weaknesses are lack of initiation and crowd control, so the items I suggest will try to solve that.)
Some suggestions for items for either purpose;
item A
+
%X base AD
+Y Magic Resist
+Z Health
Active: Cleanse CC and become Unstoppable for 3 seconds, reducing you to your base movement speed (MS boosts will not apply to you, excluding boots) and putting non ultimate dash and blink spells on twice the cooldown (Flash excluded)
This item would be good for juggernauts almost exclusively; in exchange for letting you ignore CC for a few seconds, you remove the ability to speed up for those 3 seconds (a death sentence for ranged ADCs and squishy melee champions) and punishes you quite heavily if you buy it as a mobile champion by leaving you without your mobility for a potentially very long time. Most tanks would not see very good use of it due to stats being allocated to attack damage, which few of them scale with. Even juggernauts would face trade-offs, as they would not benefit from the MS gained from Stormraider's, Black Cleaver, etc. So reducing yourself to your base speed plus whatever boots you have gives the enemy team time to disengage from you to wait out your mini-Olaf ult.
item B
+ ???
any stats you deem appropriate
Active: Causes you to leap a large distance in any direction over 2 seconds and deal damage equal to a value of your base AD when landing. Disabled for 5 seconds while taking or receiving damage from champions.
Another item that lets them do what they want to do; get into the fray. It's inspired by Blink Dagger, but I think a slower, telegraphed 'leaping' animation would be much more fitting for a class that's all about being big and being noticed rather than teleporting into you. It would not be appealing on champions who already have lots of mobility and would rather have an item with superior stats, and it is not a good item for escaping a conflict unless you manage to avoid damage for 5 seconds.
I understand that both of these items are fairly powerful in their own right. Some juggernauts (and divers) may become too strong, but I am a firm believer that these items would do a lot to change the class for the better, and offer much-needed item variance.
thanks for reading, let me know what you think.
* only three juggernauts are entirely stat-check champions and 2 of them are two of the worst champions in the game right now. the rest of them besides shyvana all have varying degrees of nuance to their gameplay and are very healthy designs
** 'low utility' is a bit dishonest; in my opinion juggernauts have some of the most reasonable utility especially for a carry class, and they have very unique non-damage contributions to their team that their peers don't intrude on. the same can no longer be said for many tanks and has never been true for classical supports.
and steal 1000 - 3000 gold from the enemy tank with no item to counter it