How do lethality and magic penetration work?

Neko Siren·5/11/2019, 10:26:23 PM·1 votes·1,699 views

New player here.

How do these things work? When should I purchase item 3071 over item 3134 for instance? Buying item 3035 makes sense for people stacking huge amounts of armor cause that's a huge % off, but wouldn't I want item 3071 or item 3134 on top of that to reduce their armor further? Is it applied and stacked in such a way?

Same questions for magic pen.

someone halp :(

4 Comments

Ahri Baka5/11/2019, 10:41:48 PM1 votes

As a Veteran player that has been playing for 2 years and even reached plat

Idk LOL I just buy everything

Done255/11/2019, 10:44:51 PM1 votes

Flash Shred %Shred %penetration flat penetration In that order

Investa5/12/2019, 4:53:01 AM1 votes

From what I understand, if an item says lethality or magic penetration and is a flat number then it will reduce the targets respective resist by that amount. Lethality is a bit different because it scales with level, but say you have 30 magic pen, and the target has 29 magic resist, that target will be treated as if they have -1 magic resist and will then take true damage from your spells. It used to be possible to get 56 mpen which was higher than the base MR of most champs at even level 18 so going full pen was very strong. Nowadays MR growth is higher and you can get at most like 40 mpen including buffs from runes that are temporary.

The general idea is flat pen for lower resist targets and percentage for all others. Black Cleaver is different because it reduces your armor so all people hitting that target will gain penetration in a manner of speaking.

CrazyMonkeyCZ5/11/2019, 10:48:15 PM

Armor pen Magic pen

Easy to understand and probably better than trying to say it in my own words.