Gets to Galactus, and stops.
Now... LT only stopped Strange's ability to call Order and Chaos. He never took any power away from Strange. He just stopped him from calling an outside force.
He never took LT and In-Betweener at the same time. LT never even fought him. He just made the two fight. Strange only fought In-Betweener in that Rom comic. He was getting beat too!
And, LT could have easily stopped Strange if he would have stepped in, and came at him with his own power, instead of using a pawn.
Anyway, Galactus beats IB, and that is where he stops.
Now, we could have Thanos use his day of prep, with him using his armada. We could have him using various devices. We could have him doing a lot of things, but prep is too much of a plot device, and I will use his own power, because, how are we going to guage what Thanos is going to do with this prep?