>>30410500180+ Atk Gyarados Waterfall vs. 252 HP / 252+ Def Celesteela: 51-60 (25 - 29.4%) -- guaranteed 4HKO
-1 252+ Atk Thick Club Marowak-Alola Shadow Bone vs. 252 HP / 52 Def Gyarados: 87-103 (43 - 50.9%) -- 1.6% chance to 2HKO after Sitrus Berry recovery
180+ Atk Gyarados Waterfall vs. 252 HP / 4 Def Marowak-Alola: 128-152 (76.6 - 91%) -- guaranteed 2HKO
-1 252 Atk Garchomp Dragon Claw vs. 252 HP / 52 Def Gyarados: 52-63 (25.7 - 31.1%) -- Miniscule chance to 4HKO after Sitrus Berry recovery
180+ Atk Gyarados Ice Fang vs. 4 HP / 0 Def Garchomp: 156-188 (84.7 - 102.1%) -- 18.8% chance to OHKO
-1 252 Atk Krookodile Crunch vs. 252 HP / 52 Def Gyarados: 49-58 (24.2 - 28.7%) -- possible 5HKO after Sitrus Berry recovery
-1 180+ Atk Gyarados Waterfall vs. 252 HP / 0 Def Krookodile: 110-132 (54.4 - 65.3%) -- guaranteed 2HKO
-1 180+ Atk Gyarados Waterfall vs. 252 HP / 0 Def Arcanine: 110-132 (55.8 - 67%) -- guaranteed 2HKO after Leftovers recovery
-1 252+ Atk Arcanine Flare Blitz vs. 252 HP / 52 Def Gyarados: 38-45 (18.8 - 22.2%) -- possible 6HKO after Sitrus Berry recovery
252+ SpA Arcanine Burn Up vs. 252 HP / 24 SpD Gyarados: 50-59 (24.7 - 29.2%) -- possible 5HKO after Sitrus Berry recovery
252+ SpA Torkoal Eruption (150 BP) vs. 252 HP / 24 SpD Gyarados in Sun: 57-68 (28.2 - 33.6%) -- 39.5% chance to 4HKO after Sitrus Berry recovery
180+ Atk Gyarados Waterfall vs. 252 HP / 0 Def Torkoal in Sun: 50-62 (28.2 - 35%) -- 6.7% chance to 3HKO
180+ Atk Gyarados Ice Fang vs. 252 HP / 4 Def Tapu Bulu: 68-80 (38.4 - 45.1%) -- guaranteed 3HKO after Grassy Terrain recovery
-1 252+ Atk Tapu Bulu Wood Hammer vs. 252 HP / 52 Def Gyarados in Grassy Terrain: 129-153 (63.8 - 75.7%) -- guaranteed 2HKO after Sitrus Berry recovery
here are the list of calculations which i'm looking out on. It took me quite a while to figure on how i should ev train my bulky gyarados. Do you think I should add the move Dragon dance? Your recommendation is kindly appreciated.