Tenacity question/build
Does this tenacity build stack?
Steraks + Merc boots + Elixir of Iron + Precision Legend Tenacity + Unflinching
If these can stack, doesn't it mean I can technically have 100% tenacity? Sounds kinda broken
8 Comments
pretty sure it does
It stacks multiplicatively, i.e. you multiply the CC duration factors --the opposite of tenacity, e.g. 
have a CC factor of 0.7, or in layman's terms means they reduce all incoming CC by 30%.
So, for instance, from and "Legend: Tenacity" you can get a CC duration of 0.7 x 0.7 = 0.49 or 51% Tenacity in total.
It's like with sales: if you buy something that originally cost $100 while it's 50% off on sale and you also have a coupon for an extra 20% off, the amount that you will end up paying will be: 100 x 0.5 x 0.8 = $40.
You multiply the original price by the new price factor (100% - 50%, or 1 - 0.5 = 0.5) and then you do the exact same thing again with the second price factor but you use the already reduced price as your starting point. In other words, you apply all the reductions one after another consecutively.
EDIT: And, as you have probably noticed, you can never reduce the original price to 0 unless you multiply by 0 itself. Similarly, with tenacity, even if you had 99.9% tenacity from 2 different sources, you'd still get a CC duration factor of 0.001 x 0.001 = 0.000001 CC duration or 99.999999% Tenacity. So you can never truly reach 100%.
Not only what the other guy said, but there is also a stupid minimum CC duration of .5 seconds.
As in its pointless to buy mercs cs someone like kennen for the purpose of tenacity.
Basically, the more you stack it, the less you get out of it. If you total more than 50% tenacity, dont invest any more into it unless you arent giving up anything via opportunity cost.