Really good guide, also nice effects ^^

I'll be the first one to comment. Pretty guide you got here but still, here are my questions:
1.
You just say it is a core item but never explain why. This kind of going very fast over things without explaining why(the "why?" question is a question you should always keep in mind while wriing a guide).
2. Sunfire Aegis is good early and mid game but late game, the damage it gives is useless(too little to be observed). Randuin's Omen has better stats and provides useful CC so you should consider selling Sunfire Aegis and buying Randuin's Omen.
3. Arrange match-ups in alpabethical order so it's easier to find the opponents.
I am too tired to read all of it, but if you explain all these points, you'll have my upvote.