Using Mana Build Orianna

When you do buy tear of the goddess, immediately use your Q whenever you can.

For Example:

1. As soon as you buy it, start spamming your q as you move about back to your lane, or wherever your destination on the map may be. (This will be the majority of where your mana bonus comes from)
2. Always look for chances to hit enemy champs with your q. Exactly like a poke.
3. IN TEAM FIGHTS, move your ball in between the ADC and the next squishiest champion. Whittling them away until they all of a sudden realize they are melted by your W.
4. Your E is a good alternative once you have a decent mana base.

This is important if you are using a mana build on Ori. Things like Manamune make use of all this late game and keep Orianna effective.

The reason for doing all this, is because you want to be able to have Archangel's staff upgrade to Seraph's as soon as you can purchase the item.

Hope this helped! :)