>>20683321Assuming no boosts to attack:
252+ Atk Lopunny High Jump Kick vs. 252 HP / 0 Def Aegislash-Shield: 230-272 (70.9 - 83.9%) -- guaranteed 2HKO after Leftovers recovery
Assuming a mere 30 points go into attack
252+ Atk Lopunny High Jump Kick vs. 252 HP / 0 Def Aegislash-Shield: 288-338 (88.8 - 104.3%) -- 31.3% chance to OHKO
51 points makes it guaranteed OHKO.
0 speed lopunny is faster than 252 speed jolly aegislash, and immune to Aegislash's only form of priority.
So nice weakness policy.