Against ornn, Constantly adapt your positioning in lane so Ornn is unable to knock you up with his E. Stand away from walls and his Pillar Q so he is unable to CC.

Refrain from using any major CC abilities on Ornn when his W is off cooldown as he can use it to dodge or escape CC.

Once Ornn hits level 6, his kill pressure in lane will increase and he may start getting ganks from his Jungler. Get vision in the river so you can spot the Jungler early. Against ornn, Always adjust your position in the track so Ornn is unable to crush you with his E. Get away from the walls and his Pillar Q so he is unable to CC. Refuse to use major CC capabilities on Ornn when his W is out of cooling as he can use it to avoid or escape CC. Once Ornn reaches level 6, his death pressure in the track will increase and he can start getting ganks from his Jungler. Get a vision in the river so you can spot the Jungler early.