User blog comment:AtheistUntoDeath/Which of these Champions Would win? Part 4/@comment-24937636-20140523160023

Orianna's lore states that her design is more based on electricity, and consequently Viktor's chaos storm would utterly obliterate her. In addition, as orianna was made by a man in piltover, it is posssible that certain research notes could have been stolen by zaun, and viktor could have significantly more knowledge about Ori's design compared to what she know about him, but this is just speculation. Additionally, viktor could trap orianna and/or the ball in a gravity field while he annhialates her with his death ray and shield, in addition to breaking her with chaos storm.