The shortness of the guide I can mess with and add more to it but the ability of it being hard to read im curious on how to fix since I do not have the knowledge to make the words bigger would spacing out the sentences and makin paragraphs out of the words be better?

The runes I adjusted and surprisingly never noticed that they were better so I thank you for that =)

Only reason I put another point in despair at lvl 3 is imo is easier to jungle killin blue and red buff instead of puttin the point in tantrum even tho after that the rest go into tantrum until maxxed.

CDR on amumu is somethin i have never tried which i shall try and c how it rolls cause i have ran into that problem before of not being able to have my bandage up to get an enemy from escaping after a team fight

the HP issue as well btw should i try goin with a warmog's right after finish up Aegis or wat is a better item for then or would for instance a Soul Shroud be worth looking into?

Sunfire you are right about so ill adjust that to somethin like Randuin's Omen instead

The Masteries i messed up on and didnt even notice i messed them up that badly.

Its short, and its hard to read. You may want to improve on this.

Note : Your runes aren't that good. Glyph of Warding is better than fortitude, and mark of fortitude is better than warding. Check out Sear's Full rune build for more info.

Its better to fully max a skill than to take a little extra on others. In this case, it would be better if you max tantrum, with one point in despair at lvl 1, 1 in bandage toss at lvl 4, your ult in lvl 6 and start adding despair at lvl 8 and 10 onwards, taking ulti whenever possible.

You have no CDR. For amumu, its really good to at least have some cdr items that help with bandage toss's cooldown and his ulti, or else its hard to chase people down after a teamfight.

You have decent Armor and MR, but you may want to get hp 1st instead, seeing hp helps with both AD and AP opponents, or else you'll be hard pressed against the ones you don't guard against.

Sunfire isn't a good item, it gives 1/3 of warmor AND thornmail, which are just 2x (slightly less) as much gold as a single sunfire. You may not want it as much, even though its passive is good, but damage dealt should be from carries and spellcasters, not Amumu.

Your masteries are weak. You do not take neutral buff time length AND smite. Usually, most would either take one, or both, but not none.

You don't have that much hp regen or mp regen. Persevereance is a waste on you. Good hands is way better.

Otherwise, good guide :) You may want to add in situational items, as well as lengthening your guide with explanations :)

Hope it helps!