My only issue with this guide is the archangel's staff. Its a great item in normal play but in my experience it is very hard to get up to a seraph's embrace in the typical amount of time in a ARAM, I find the chalice to be much more sustainable for spamming. If you can level it to a seraph's its worth it but I find more valuable uses in other AP items
-Just my humble opinion, upvoted still, the guide itself gave all the good points for a AP sona :D