Orianna

Strengths

Command: Protect can be used on yourself to return the Ball back to you quickly. Combine this with Command: Attack for a quick harassment.
Command: Dissonance is a very powerful escape tool if Orianna has the Ball. The combination of speed and leaving a slowing obstacle can be quite powerful.
Command: Shockwave can be used to drag enemies towards you or away from you if you position the Ball properly.

Passive · Clockwork Windup — Orianna's Attacks deal additional magic damage. This damage increases the more Orianna Attacks the same target.
Q · Command: Attack — Orianna commands her Ball to fire toward a target location, dealing magic damage to targets along the way (deals less damage to subsequent targets). Her Ball remains at the target location after.
W · Command: Dissonance — Orianna commands her Ball to release a pulse of energy, dealing magic damage around it. This leaves a field behind that speeds up allies and slows enemies.
E · Command: Protect — Orianna commands her Ball to attach to an allied champion, Shielding them and dealing magic damage to any enemies it passes through on the way. Additionally, the Ball grants additional Armor and Magic Resist to the champion it is attached to.
Ultimate · Command: Shockwave — Orianna commands her Ball to unleash a shockwave, dealing magic damage and launching nearby enemies towards the Ball after a short delay.

A suggested 5-lane lineup built around Orianna, based on hero partnerships and role synergy — not win rate.