>>43176227>>43176239Sure you can, but why?
Landorus-T is still 2HKO’d by Ice Punch without you needing to cut a significant portion of your much higher attack, bulk, or speed.
-1 252 Atk Slaking Ice Punch vs. 252 HP / 112+ Def Landorus-Therian: 224-268 (58.6 - 70.1%) -- guaranteed 2HKO after Leftovers recovery
0 SpA Slaking Ice Beam vs. 252 HP / 0 SpD Landorus-Therian: 300-356 (78.5 - 93.1%) -- guaranteed 2HKO after Leftovers recovery
The only time it would matter is if you are fighting against a full health Scarf Landorus-T.
-1 252 Atk Slaking Ice Punch vs. 0 HP / 68 Def Landorus-Therian: 260-308 (81.5 - 96.5%) -- guaranteed 2HKO
0 SpA Slaking Ice Beam vs. 0 HP / 0 SpD Landorus-Therian: 300-356 (94 - 111.5%) -- 68.8% chance to OHKO
This is also assuming you are running leftovers, and not Life Orb, and there are no entry hazards up, AND Landorus-T is at full health.