In response to ginganinja's concern about Starmie:
252 SpA Life Orb Starmie Signal Beam vs. 252 HP / 236+ SpD Celebi: 265-312 (65.59 - 77.22%) -- guaranteed 2HKO after Stealth Rock
0 SpA Celebi Giga Drain vs. 0 HP / 4 SpD Starmie: 186-218 (71.26 - 83.52%) -- guaranteed 2HKO after Stealth Rock
So factoring in Giga Drain regen, worst case scenario is 93 HP restored which becomes essentially
252 SpA Life Orb Starmie Signal Beam vs. 252 HP / 236+ SpD (custom): 265-312 (53.64 - 63.15%) -- guaranteed 2HKO after Stealth Rock
overall. Factor in Leftovers and there is an extremely small chance of surviving, however the chance of survival increases as the RNG falls more in your favor. So Celebi has the chance of surviving a Signal Beam Starmie, with a small but admittedly not unreasonable chance of dying. I could EV up more is SpD over Spe, as I don't believe it's making us outspeed anything important Celebi wouldn't already outspeed. This *should* cause Celebi to always live the two Signal Beams after SR, however I can't say that for certainty. Also, using Signal Beam over either Ice Beam or Thunderbolt could have drawbacks no matter what, as Tbolt is a better check to Slowbro and Ice beam is more helpful against Landorus, both of which cause huge troubles for Starmie. So should Celebi get picked, Starmie probably wouldn't be the most solid choice overall.
252 SpA Life Orb Starmie Signal Beam vs. 252 HP / 236+ SpD Celebi: 265-312 (65.59 - 77.22%) -- guaranteed 2HKO after Stealth Rock
0 SpA Celebi Giga Drain vs. 0 HP / 4 SpD Starmie: 186-218 (71.26 - 83.52%) -- guaranteed 2HKO after Stealth Rock
So factoring in Giga Drain regen, worst case scenario is 93 HP restored which becomes essentially
252 SpA Life Orb Starmie Signal Beam vs. 252 HP / 236+ SpD (custom): 265-312 (53.64 - 63.15%) -- guaranteed 2HKO after Stealth Rock
overall. Factor in Leftovers and there is an extremely small chance of surviving, however the chance of survival increases as the RNG falls more in your favor. So Celebi has the chance of surviving a Signal Beam Starmie, with a small but admittedly not unreasonable chance of dying. I could EV up more is SpD over Spe, as I don't believe it's making us outspeed anything important Celebi wouldn't already outspeed. This *should* cause Celebi to always live the two Signal Beams after SR, however I can't say that for certainty. Also, using Signal Beam over either Ice Beam or Thunderbolt could have drawbacks no matter what, as Tbolt is a better check to Slowbro and Ice beam is more helpful against Landorus, both of which cause huge troubles for Starmie. So should Celebi get picked, Starmie probably wouldn't be the most solid choice overall.








