Expert take
Ornn is an excellent pick if you want to influence the game through structure rather than pure dueling. He does not only reward mechanical precision: he rewards terrain reading, patience before engaging, and the ability to know when your team can truly move forward. The average player mostly sees a durable tank with a big ultimate; a good player understands that Ornn is a rhythm-control tool. His best version appears when you use lane to reach your windows, then force fights in places where his Q, E, and ultimate reduce enemy options. He is not ideal for carrying chaotic games alone, but he makes a coherent team much harder to beat.