BreakerPon

Ogerpon-Wellspring (F) @ Wellspring Mask
Ability: Water Absorb
Tera Type: Water
EVs: 72 HP / 252 Atk / 4 Def / 180 Spe
Adamant Nature
- Ivy Cudgel
- Knock Off / Power Whip
- Taunt
- Synthesis
Although Wellspring lacks the overbearing ability to break that Hearthflame Ogerpon had with Mold Breaker, Taunt allows Ogerpon-Wellspring to beat almost anything on stall single-handedly while Synthesis helps with needed longevity. Power Whip immediately threatens Dondozo, Alo and Pex, while Knock Off enables permanent progress by making the aforementioned mons take hazard chip, which can add up quickly in a metagame where max hazards are often achievable and not difficult to maintain with the presence of Gholdengo and more Spikers than there is removal. On a team with solid hazard setters, Knock Off is likely preferable.
The given spread maintains enough speed for offensive Great Tusk and lives a Corviknight Brave Bird from full; with rocks up, Corvi in fact gets 2HKOd by Ivy Cudgel + Brave Bird recoil. This set also hard walls Gliscor even if it Teras, as it can taunt to prevent Toxic and Protect and resists EQ, taking only minimal damage while not even letting it get up hazards.
Tera is mostly unnecessary on this set, but it improves the matchup into stall Tornadus-T, Corviknight and Sludge Bomb Toxapex, no longer being weak to their attacks and gaining a Sp.Def boost to take even less from special hits from mons like Gholdengo and Specs Dragapult. Pure Water is just a good typing to have defensively, also removing your weakness to U-turn to improve the Cinderace matchup. The additional damage is also appreciated, with Ivy Cudgel now being a roll to 2HKO Corviknight from full.

Ogerpon-Wellspring (F) @ Wellspring Mask
Ability: Water Absorb
Tera Type: Water
EVs: 72 HP / 252 Atk / 4 Def / 180 Spe
Adamant Nature
- Ivy Cudgel
- Knock Off / Power Whip
- Taunt
- Synthesis
Although Wellspring lacks the overbearing ability to break that Hearthflame Ogerpon had with Mold Breaker, Taunt allows Ogerpon-Wellspring to beat almost anything on stall single-handedly while Synthesis helps with needed longevity. Power Whip immediately threatens Dondozo, Alo and Pex, while Knock Off enables permanent progress by making the aforementioned mons take hazard chip, which can add up quickly in a metagame where max hazards are often achievable and not difficult to maintain with the presence of Gholdengo and more Spikers than there is removal. On a team with solid hazard setters, Knock Off is likely preferable.
The given spread maintains enough speed for offensive Great Tusk and lives a Corviknight Brave Bird from full; with rocks up, Corvi in fact gets 2HKOd by Ivy Cudgel + Brave Bird recoil. This set also hard walls Gliscor even if it Teras, as it can taunt to prevent Toxic and Protect and resists EQ, taking only minimal damage while not even letting it get up hazards.
Tera is mostly unnecessary on this set, but it improves the matchup into stall Tornadus-T, Corviknight and Sludge Bomb Toxapex, no longer being weak to their attacks and gaining a Sp.Def boost to take even less from special hits from mons like Gholdengo and Specs Dragapult. Pure Water is just a good typing to have defensively, also removing your weakness to U-turn to improve the Cinderace matchup. The additional damage is also appreciated, with Ivy Cudgel now being a roll to 2HKO Corviknight from full.
Ivy Cudgel Calcs
252+ Atk Wellspring Mask Ogerpon-Wellspring Ivy Cudgel vs. 244 HP / 252+ Def Gliscor: 252-296 (71.5 - 84%) -- guaranteed 2HKO after Poison Heal
252+ Atk Wellspring Mask Ogerpon-Wellspring Ivy Cudgel vs. 248 HP / 92 Def Tornadus-Therian: 220-259 (60.9 - 71.7%) -- guaranteed 2HKO
252+ Atk Wellspring Mask Ogerpon-Wellspring Ivy Cudgel vs. 248 HP / 252+ Def Corviknight: 142-168 (35.5 - 42.1%) -- guaranteed 3HKO
Power Whip Calcs:
252+ Atk Wellspring Mask Ogerpon-Wellspring Power Whip vs. 252 HP / 192+ Def Toxapex: 135-160 (44.4 - 52.6%) -- guaranteed 3HKO after Leftovers recovery
252+ Atk Wellspring Mask Ogerpon-Wellspring Power Whip vs. 252 HP / 252+ Def Dondozo: 320-378 (63.4 - 75%) -- guaranteed 2HKO
Knock Off Calcs:
252+ Atk Wellspring Mask Ogerpon-Wellspring Knock Off (97.5 BP) vs. 0 HP / 0 Def Dragapult: 336-396 (105.9 - 124.9%) -- guaranteed OHKO
Tera Cudgel Calcs:
252+ Atk Wellspring Mask Tera Water Ogerpon-Wellspring-Tera Ivy Cudgel vs. 248 HP / 252+ Def Corviknight: 190-224 (47.6 - 56.1%) -- 80.9% chance to 2HKO
252+ Atk Wellspring Mask Ogerpon-Wellspring Ivy Cudgel vs. 244 HP / 252+ Def Gliscor: 252-296 (71.5 - 84%) -- guaranteed 2HKO after Poison Heal
252+ Atk Wellspring Mask Ogerpon-Wellspring Ivy Cudgel vs. 248 HP / 92 Def Tornadus-Therian: 220-259 (60.9 - 71.7%) -- guaranteed 2HKO
252+ Atk Wellspring Mask Ogerpon-Wellspring Ivy Cudgel vs. 248 HP / 252+ Def Corviknight: 142-168 (35.5 - 42.1%) -- guaranteed 3HKO
Power Whip Calcs:
252+ Atk Wellspring Mask Ogerpon-Wellspring Power Whip vs. 252 HP / 192+ Def Toxapex: 135-160 (44.4 - 52.6%) -- guaranteed 3HKO after Leftovers recovery
252+ Atk Wellspring Mask Ogerpon-Wellspring Power Whip vs. 252 HP / 252+ Def Dondozo: 320-378 (63.4 - 75%) -- guaranteed 2HKO
Knock Off Calcs:
252+ Atk Wellspring Mask Ogerpon-Wellspring Knock Off (97.5 BP) vs. 0 HP / 0 Def Dragapult: 336-396 (105.9 - 124.9%) -- guaranteed OHKO
Tera Cudgel Calcs:
252+ Atk Wellspring Mask Tera Water Ogerpon-Wellspring-Tera Ivy Cudgel vs. 248 HP / 252+ Def Corviknight: 190-224 (47.6 - 56.1%) -- 80.9% chance to 2HKO
Pre-Tera:
0 Atk Gliscor Earthquake vs. 72 HP / 8 Def Ogerpon-Wellspring: 59-70 (18.4 - 21.9%) -- possible 5HKO
252+ Def Dondozo Body Press vs. 72 HP / 8 Def Ogerpon-Wellspring: 101-119 (31.6 - 37.3%) -- 85.6% chance to 3HKO
0 Atk Corviknight Brave Bird vs. 72 HP / 8 Def Ogerpon-Wellspring: 264-312 (82.7 - 97.8%) -- guaranteed 2HKO
0 SpA Clefable Moonblast vs. 72 HP / 0 SpD Ogerpon-Wellspring: 102-121 (31.9 - 37.9%) -- 94.5% chance to 3HKO
Post-Tera:
0 Atk Corviknight Brave Bird vs. 72 HP / 8 Def Tera Water Ogerpon-Wellspring-Tera: 132-156 (41.3 - 48.9%) -- guaranteed 3HKO
252 SpA Tornadus-Therian Bleakwind Storm vs. +1 72 HP / 0 SpD Tera Water Ogerpon-Wellspring-Tera: 102-120 (31.9 - 37.6%) -- 89.4% chance to 3HKO
0 SpA Toxapex Sludge Bomb vs. +1 72 HP / 0 SpD Tera Water Ogerpon-Wellspring-Tera: 42-49 (13.1 - 15.3%) -- possible 7HKO
252 SpA Gholdengo Shadow Ball vs. +1 72 HP / 0 SpD Tera Water Ogerpon-Wellspring-Tera: 93-109 (29.1 - 34.1%) -- 2.6% chance to 3HKO
252 SpA Choice Specs Dragapult Draco Meteor vs. +1 72 HP / 0 SpD Tera Water Ogerpon-Wellspring-Tera: 184-217 (57.6 - 68%) -- guaranteed 2HKO
0 Atk Gliscor Earthquake vs. 72 HP / 8 Def Ogerpon-Wellspring: 59-70 (18.4 - 21.9%) -- possible 5HKO
252+ Def Dondozo Body Press vs. 72 HP / 8 Def Ogerpon-Wellspring: 101-119 (31.6 - 37.3%) -- 85.6% chance to 3HKO
0 Atk Corviknight Brave Bird vs. 72 HP / 8 Def Ogerpon-Wellspring: 264-312 (82.7 - 97.8%) -- guaranteed 2HKO
0 SpA Clefable Moonblast vs. 72 HP / 0 SpD Ogerpon-Wellspring: 102-121 (31.9 - 37.9%) -- 94.5% chance to 3HKO
Post-Tera:
0 Atk Corviknight Brave Bird vs. 72 HP / 8 Def Tera Water Ogerpon-Wellspring-Tera: 132-156 (41.3 - 48.9%) -- guaranteed 3HKO
252 SpA Tornadus-Therian Bleakwind Storm vs. +1 72 HP / 0 SpD Tera Water Ogerpon-Wellspring-Tera: 102-120 (31.9 - 37.6%) -- 89.4% chance to 3HKO
0 SpA Toxapex Sludge Bomb vs. +1 72 HP / 0 SpD Tera Water Ogerpon-Wellspring-Tera: 42-49 (13.1 - 15.3%) -- possible 7HKO
252 SpA Gholdengo Shadow Ball vs. +1 72 HP / 0 SpD Tera Water Ogerpon-Wellspring-Tera: 93-109 (29.1 - 34.1%) -- 2.6% chance to 3HKO
252 SpA Choice Specs Dragapult Draco Meteor vs. +1 72 HP / 0 SpD Tera Water Ogerpon-Wellspring-Tera: 184-217 (57.6 - 68%) -- guaranteed 2HKO
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