Grassy glide isn't something that Lando will like switching into, and no hp ice means it walls itself now lol. I mentioned scorching sands because it's a great utility move, having a 30% burn chance would have been worth the power loss from earthquake on defensive sets. I never said it was going to be bad, I just think it won't be an S tier mon this gen. Especially if the strong breakers we're getting now stay in the tierEverything else also lost HP Ice, Grassy Terrain was a thing last gen, and nothing relevant uses an ability that ignores Intimidate. Scorching Sands is also significantly weaker than Earthquake (70 power off 105 SpA vs 100 power off 145 Att) which doesn't play to Landorus's strength as a Pokemon who plays offensive and defensive roles simultaneously.
It's fucking Landorus. It's obviously going to be good.