THANKS!
This guide was really helpful.
I'm still a newbie (been playing for about two weeks now) but I have this thing where I always go for the hardest character in every videogame, so I chose Orianna. I read some other guides, which have also been very informative, but yours is the most carefully thought. The other guides don't have Orianna with such a high sustainability, which is my favorite part about her. I already master her to a point where I understand everything in your guide and thanks. I haven't lost a game since I learned how to use her (about 7 straight wins) and I am eager to play some more with your tips.

Considering the new items and item changes, Would Nashor's Tooth be viable now that it deals additional damage on-hit with an AP ratio? The CDR and AP isn't terrible for her either, and with the new ratio her auto-attacks now would have a total 30% AP ratio...

Amazing build and guide! :D

Anyone tried to maximize dissonance first?I'm always using it like that.I'm kind of based in extra attack damage from passive when farming yet i'm still struggling on farm even in carry.Just asking if anyone plays like it

Is it a good choice to start with 2 Faerie Charms and 3 health potions?

Voted, good guide.
I love playing Ori, probably one of the first champions that I fell in love with when I started playing. (Balls are fun to play with!)

Abilities:

- I tend to max out W first for dmg + MS, while using Q to position.
-- Lvl 1 W's dmg is poor: 70 mana cost for 70 base dmg and 9s CD.

- Laning: if I'm getting ganked a lot or being out-traded, I get a couple points in E instead of Q for the additional armour and shield value.

- Generally I appreciate E a lot more than Q:
-- The base dmg on Q = base dmg on E
-- Although Q scales better with AP than E, E can do just as much to a specific target since Q's dmg decreases with every enemy hit, so instead of the +50% AP, the dmg can get reduced by 60% to +20% AP. Mainly affected by a minion wave.
--- In lane, I can use E to farm more safely (Q to position + dmg => W dmg => E dmg + shield from enemy).
-- Downsides: mana costs 10 more than Q, longer CDR

Items:
- I'd like to hear your thoughts about an Archangel's Staff/Seraph's Embrace. I guess late game the mana/AP drops off. (I tend to spam skills, so I use more mana from maxing W.)
- Thoughts on Liandry's Torment? Some health, MP, some AP and passive has good synergy with W.
- Lich Bane isn't one of my go-to items. I'll give it a try.
- Occasionally I go for Rylai's Crystal Scepter for Health + AP, but with your guide WotA and Zhonya's should be as effective.
- Adding boot enhancements would make the guide more complete

First build that truly worked for me! Thank you so much :D +1

Nice guide and build man!

1 thing though, at the pro's and cons you got terrific farmer etc. at the pro's. Note that terrific means terrible so thats a bad thing.

And to you too!

i would sell athenes unholy grial when im full equiped and would buy ryalist, you get hp, ap and more slow and mana is not necesary like mid or early game and less whit ur blue buff

Updating soon for season 3 =)