>>22679519See the comparison and how much just the light ball alone does for it
252 SpA Life Orb Raichu Thunderbolt vs. 252 HP / 252+ SpD Rotom-W: 103-122 (33.8 - 40.1%) -- 30.2% chance to 3HKO after Leftovers recovery
252 SpA Light Ball Raichu Thunderbolt vs. 252 HP / 252+ SpD Rotom-W: 157-186 (51.6 - 61.1%) -- 94.1% chance to 2HKO after Leftovers recovery