HELLO SUMMONERS! This is my first guide so every tip and comment will help me a lot!

Runes are pretty simple.

RED:Mpen just becouse u need dmg.
Yellows:Armor runes helps a lot and those are werry cheap(the main reason why i use them)
Blue:CDR u need ur skills and u dont need CDs
Big ones:AP is the thing whicht orianna loves

Masterys... just simple caster masteries

Ill add more items later. This item build is mine and it works really well for me. There are a lot of situational items u can use.

This is a best way to max her spells R>Q>E>W. But if u play orianna as a support u should max R than W>E and Q(shes not the best support but still viable

Flash is the best summoner spell i think