GET IN MA BELLY!

+1 good start

you should captalize the s in summoner spells. also turn on require comment to vote. you should also work on your coding for pictures with sizes of 64.

keep up the good work!

Needs some colors maybe BBcoding and some less walls of text. Try to use columns, line separators and things like that. I suggest jhoijhoi's Making a Guide for more improvements.
It has potential, so no downvote.
One last tip: separate your sentences. With these: .

I like it. It's pretty short and to the point. I love using Gragas and this is pretty close to how I build him so I might be a touch biased.

You might want to expound a bit on what you said regarding building differently each game. You might also want to add some videos or go more into depth in terms of strategy. You might also want to go into how to use him in 3 v 3 (I use him there and find that he's pretty effective). One of the Gragas guides on here has tons of stuff like that (maybe a little too much actually) but it can be effective. Also you might want to have someone proofread for you for spelling errors and the like.

All in all good job man. Oh and I go Doran's ring first but that's just a matter of taste.