New tank item: Warmonger's Shackle
EDIT 1: Active Duration tweaked to make it more of a tank than bruiser item. EDIT 2: Added a clrification that the active does neither root, nor snares - but only disables dashes and blinks. EDIT 3: Armor reduced by 10, MR reduced by 5. (Cost efficiency significantly dropped. Should be more noticeable on Bruisers than tanks. Cost slightly reduced as compensation.)
1000g (380 Health)
750g (40 Armor)
850g (45 MR)
+800g = 3400g
E3:+750g = 3350g
Warmonger's Shackle
400 health 40 Armor 45 MR
Unique passive: Increases Bonus Health by 25%.
Unique active: Throws a shackle at target enemy (600 range). Target enemy can't use dashes or blinks for 0.25 seconds (+1s/ 100 MR, +1s / 100 Armor). The target's normal movement is unimpaired by this effect. You move 30% faster for the duration. (90s CD)
Numbers are open for tweaks
Than above item would be. (Well, there are more champions, but these see more play)
or
(Those for support are a little bit cheaper). I think it's only fair for tanks to get one aswell.