Damborgson
King of the Damboys
I know enough about Thanos to know the level he's at, and that Thor loses decisively and every time under normal conditions. but with cis off a couple questions come to mind.
1. Can he teleport with standard gear?
2. does he have tech to enable flight?
If he doesn't have teleportation tech, then BFR ftw.
Also without flight is there anything that would really stop Thor from range spamming him? I'm willing to bet on his maneuverability more than Thanos' blasts. Plus the energy blasts come with the risk of being absorbed and redirect by Mjolnir.
Also with cis off, Thor would/could just warp space around Thanos' shielding. Landing some pretty nasty hammer throws. Idk, just doesn't seem to clear cut at all to me under the specification of the OP.