Ori is a fairly safe pick into LB imo. I don't see her dominating lane, but she can stay safe and farm up for teamfights. LB can easily get out of her ulti, so I would save that for defensive use rather than all-in (when she tries to burst you down under tower, use ult to disrupt her, she'll either have to back out or die)
Anyways, new featured gamemode is whoa, so much things... I kinda hope some of the items are sticking around