Might as well revive this thread, dunno if this lure is still viable or not though.
Landorus-Therian @ Earth Plate
Ability: Intimidate
EVs: 252 Atk / 4 Def / 252 Spe
Adamant Nature
-
Gravity
- Earthquake
- Stone Edge
- U-Turn
Here is a nice lure for Rotom-W and Skarmory, common 'counters' to Landorus-T. Under Gravity, Earthquake OHKOs standard Rotom-W as well as 2HKOing Skarmory. Earthquake is also highly spammable under Gravity, and 'mons that resist it are nailed by Lando's other coverage options. I don't know if there's a more efficient spread, but Adamant is used with Earth plate to cleanly OHKO Rotom-W as well as giving more power in general.
Stuff that want Rotom and Skarmory gone such as Mega Lopunny and Mega Pinsir could be potential partners to this set, and Pokemon who can get rid of Ice- and Water- types also aid Landorus-T greatly.
EDIT: Some calcs
252+ Atk Earth Plate Landorus-T Earthquake vs. 248 HP / 216+ Def Rotom-W: 330-390 (108.9 - 128.7%) -- guaranteed OHKO
252+ Atk Earth Plate Landorus-T Earthquake vs. 248 HP / 252+ Def Rotom-W: 320-380 (105.6 - 125.4%) -- guaranteed OHKO
252+ Atk Earth Plate Landorus-T Earthquake vs. 252 HP / 252+ Def Skarmory: 266-314 (79.6 - 94%) -- 43.8% chance to OHKO after Stealth Rock
252+ Atk Earth Plate Landorus-T Earthquake vs. 252 HP / 168+ Def Zapdos: 408-480 (106.2 - 125%) -- guaranteed OHKO