Urshifu-Rapid-Strike @ Focus Sash  
Ability: Unseen Fist  
Level: 50  
EVs: 252 Atk / 4 SpD / 252 Spe  
Jolly Nature  
IVs: 0 SpA  
- Close Combat  
- Detect  
- Surging Strikes  
- Aqua Jet

Unown
Options:
- offensive: Poison Jab, U-Turn
- items: Choice Band, Choice Scarf

Unown
Offensive calcs:
- 252 Atk Urshifu-Rapid Strike Close Combat vs. 252 HP / 0 Def Mega Walrein: 224-266 (103.2 - 122.5%) -- guaranteed OHKO
- 252 Atk Urshifu-Rapid Strike Close Combat vs. 252 HP / 4 Def Mega Empoleon: 200-236 (104.7 - 123.5%) -- guaranteed OHKO

Urshifu-Rapid-Strike @ Mystic Water  
Ability: Unseen Fist  
Level: 50  
EVs: 12 HP / 220 Atk / 4 Def / 44 SpD / 228 Spe  
Adamant Nature  
IVs: 0 SpA  
- Close Combat  
- Detect  
- Surging Strikes  
- Aqua Jet

Unown
Offensive calcs:
- 220+ Atk Mystic Water Urshifu-Rapid Strike Surging Strikes (3 hits) vs. 236 HP / 4 Def Incineroar on a critical hit: 276-330 (138 - 165%) -- guaranteed OHKO
- 220+ Atk Mystic Water Urshifu-Rapid Strike Surging Strikes (3 hits) vs. 252 HP / 0 Def Mega Dhelmise in Rain on a critical hit: 174-207 (98.3 - 116.9%) -- approx. 93.8% chance to OHKO
Defensive calcs:
- 252+ Atk Landorus-T Earthquake vs. 12 HP / 4 Def Urshifu-Rapid Strike: 76-90 (42.9 - 50.8%) -- 2.7% chance to 2HKO
- 252+ SpA Zapdos Discharge vs. 12 HP / 44 SpD Urshifu-Rapid Strike: 152-182 (85.8 - 102.8%) -- 12.5% chance to OHKO