I checked those calcs on Cherubi Calculator (old Libelldra). They're slightly different, however damage is still insane. If I'm not mistaken Icicle Spear thanks to Skill Link has 125 base power, right ? Bold Max Hp/Max Def Lugia 103.85% -->122.60% Bold Max HP/Max Def Giratina 90.87% --> 107.14% I checked also few other physical walls just in case, not weak against Ice. Max HP/Max Def Bold Cresselia 51.58% --> 60.81% Cresselia in this situation may only use T-Wave, Reflect and try to recover any health back. Max HP/Max Def Stoned Porygon2 49.73% --> 58.82% Probably best bet. Porygon2 handle it and retaliate with Thunderbolt for OHKO. Max HP/Max Def Positive Nature Stoned Dusclops 50.70% --> 60.21% You better hope that WoW hits... Max HP/Max Def Positive Nature Intimidate Zuzuruzukin 53.29% --> 62.87% I think that STAB Close Combat should OHKO back. If we look for something ridiculous to take hit... (however Hydro Pump is huge problem for them, so... yeah) Max HP/Max Def Positive Nature Intimidate Hitmontop 66.45% --> 78.29% Max HP/Max Def Positive Nature Granbull 60.94% --> 71.88% In other words I think that stall can barely handle it if they don't have Empoleon, Poliwrath, Kerudio (all of them resists standard Water/Ice/Rock combination) or Water Arceus (I need to check Arceus though). Oh, and I guess Unaware Quagsire should also work ignoring easily these beastly boosts and... Defensive Bibarel (lol :D) ;). So I change my mind - it's stoppable, however you need a bit specialized check.