Talk:Udyr/@comment-7273169-20130901085405/@comment-5185239-20130909021119

Armor options are Zhonyas on APs, Randuins on ADs and GA on both. Spirit Visage is fairly useless on ADs since they dont need flat resist because they lack health (low base health + no health on any dps items), APs dont need it as cdr is mostly gotten by blue buff and Morellos/Athenes. BV gives 55 Mr making ranged champs hit nearly 100 mr (97 with flat mr blues, 49% dmg reducts) and 450hp, Qss gives you just 87 mr (46% reduct).

Randuins on the other hand gives a champ like Vayne (9,3 base armor with 3,4 per level, 13 armor runes and 5 from masterys) have 158,5 armor along 500hp (61% reduction). GA gives you 138,5 armor (58% reduction).

Armor is easier to itemize because you get it as a defensive item, Randuins is a great AD item as it helps you peel bruisers, GA is just a amazing passive which makes you a undesirable target. You're not going to buy it in order to deal more damage, but to be able to just deal the same damage for a longer item. People will rarely have more Mr than Armor unless you run some double/triple AP comp.