MR glyphs on CastersCreator: : Searz
March 23, 2012 8:05am
It's like Mercury's Treads vs Sorcerer's Shoes. 20 mpen vs 24 mres. There's that 4 bonus. But now you have to consider. Since you're a caster, you'd want increased damage as a carry. Damage is important. Now we have to look at survivability because without it, you'll just die instantly or become a fragile glass cannon.
Basically, if you take Mres, any magic damage dealt to you will be lowered. However, if you take Mpen/AP, any damage YOU deal with your spells will be increased. That's how you'll want to look at things.
penboots are better if they increase your burst signifficantly which they will in a lot of comps
but if they got mrheavy stuff you will wanna get mr boots...
and you are just 100% ignoring the tenacity :)
pen is good earlygame but mid-lategame it gets worse and worse (flat pen that is)