ummmmmmm. ty. i thought insight was a bit better than potency because if they stack up on mr, i penetrate through that and deal more dmg. getting more magic is not the best option. And thanks for the link. It really helped. I'll switch up the rabadon and abyssal. Also, i never realy liked the zhonyas hourglass because my keyboard thingies sometimes don't work. Also, when i try to click on it, im already dead. So, i never bought it. Also, look at my AMumu Guide too :] I really want all the help I can get. :] Ty.

ok first thing I notice is something bad in your Quintessences. You have gotten Greater Quintessence of Magic Penetration which isn't as good as getting the Greater Quintessence of Ability Power you might ask y? because if you put some math into it the damage that you would deal with the Potency quintessences are a lot greater during the early game situation.

And Second off Check out this guide it will save me a ton of explaining and make your guide more interesting to read this link to be able to make your guide the strongest possible and also place a full build in the section so people don't think that you are crazy.

Third Rabandon's Deathcap is not a situation item that Abyssal Specter is though because of the great magic resist that the item gives you will create a better set up against ap and if you go up against a team of all ad you have just bought an item that will do nothing for you in a defensive stand point if the other team was all ad I would get Zhonya's Hourglass to be able to get more armor and an amazing active that will easily save your life. For example your ult is on CD for 2 more seconds,Blow it and give yourself impenetrability for thoughs 2 seconds and then get away with ease or just be able to start off a team fight something of that madder.

I think this guide can get somewhere but first please think of your build more effectively before you place another guide because you got a lot of work to do on this one already.

Good Day,
Nomoya