Hey bud, did some more playing around and i notice one thing, instead of Rylais scepter, i'm starting to like litch bane as last item. Still give you same AP at the scepter, but it makes your passive ungodly.

With it, you passive will be dealing 1000+ damage at full stacks of majais at end game. It converts 100% of your AP to your auto attack after using a spell, pretty much supercharging your passive.

Light Bind, auto attack, singularity, beam, auto attack makes for 450+1000+400+1100+1000 damage respectively! (that's with ~900 AP)

Check it out

Thanks for the feedback ^^ I 100% agree with you on the item choices, I find myself changing a few items depending on the opposing team while keeping the core items. I think I'll add an item variation section to my build, thanks for the idea and the comment :)

Absolutely love this build. Some key notes though when fighting various types of champs.

vs Tanks:
Use Deathfire Grasp instead of Merellos Tome. 30% instant damage plus the CDR is sweet.

vs Assassins (warwick, akali, eve. etc)
Get Zhona's Hourglass instead of Rylai's. The hourglass will give you 100 AP boost and armor. Use it active ability to survive the assassins Ultis and allow you to stun and gtfo of there.

By all means, DONT DIE! Mejais as your second item is your life source... Gank gank gank.. 2 or 3 kills in (no deaths) you will start to become more unstoppable. Beam as often as possible, even when it's not going to kill a champ. It better to get an assist then nothing at all to keep build stacks.

+1 dude