Ninja tabi is way more useful on squishies than tanks and bruisers.
Ninja tabi damage reduction stacks multiplicatively with armor and such (according to the league wiki page). meanwhile as a squishy you get flat damage reduction from them..
its getting a little too difficult to kill lucian's with ninja tabi. hes not supposed to build them. nobody builds lethality anymore. the item is too good on squishies. and arguably subpar on tanks beyond laning phase.
its just too good on squishies. on top of the armor that passive . for its price it gives you the most tankiness against ad auto attack champions. and its just boots.
make the damage reduction scale with bonus armor.. or something.
to make them a more attractive purchase.