What it does on the ladder
Samurott-Hisui appears on 0.48% of Regulation M-B teams, which
is 99th of the 282 Pokémon with enough games to measure.
The move it almost always carries is Sacred Sword, on 74.4% of sets.
The item is usually Choice Scarf at 35.1%.
The ability is split: Sharpness on 98.9% and Torrent on 1.1%.
Those are Smogon's published usage figures, not anything measured here, and they describe what
the ladder plays rather than what is strongest. The full set is in the panel above.
The Pokémon itself
Samurott-Hisui is number 503 in the National Dex, a Unova Pokémon, Water and Dark
with a base stat total of 528 — 50th of the 234 Pokémon
legal in this regulation. Its best stat is Attack at 108, 69th
in the format; its weakest is Sp. Def at 65, 193rd.
It can have Torrent and Sharpness.
The Champions module tiers it OU.
It sits in a 3-stage line: Oshawott → Dewott → Samurott-Hisui.
Not all of that line is legal in this regulation — Oshawott and Dewott are not.
What gets through
As Water and Dark, 5 of the eighteen attacking types do extra damage to it. It
resists 6 and is immune to 1. The board above
has all of it. 2 other legal Pokémon share the same typing and the same board: Greninja, Sharpedo.
What threatens it
Smogon publishes no head-to-head checks-and-counters data for doubles formats, so this list is
computed, not measured: the most-played Regulation M-B Pokémon carrying a damaging
move of a type Samurott-Hisui takes extra damage from.
- Charizard-Mega-Y — Solar Beam (Grass, ×2), on 82.2% of its sets
- Sinistcha — Matcha Gotcha (Grass, ×2), on 97.9% of its sets
- Whimsicott — Moonblast (Fairy, ×2), on 93.9% of its sets
- Sneasler — Close Combat (Fighting, ×2), on 99.7% of its sets
- Farigiraf — Thunderbolt (Electric, ×2), on 59.2% of its sets
- Floette-Mega — Dazzling Gleam (Fairy, ×2), on 95.9% of its sets
Against its own formes
Samurott has 2 legal formes in this regulation and they share a
typing, so the only thing separating them is the stat line.
This one has the highest Attack at 108 and Speed at 85 of the 2.
It has the lowest HP at 90, Defense at 80, Sp. Atk at 100 and Sp. Def at 65.
The others are Samurott.
Speed and weight
At level 50 with a boosting nature and full investment, Samurott-Hisui reaches
150 Speed; left uninvested with a neutral nature it sits at
105. Invested, it outruns 11 of the 20
most-used Pokémon in the regulation when they are invested too — which is the comparison that
decides who moves first.
It weighs 58.2 kg, so Grass Knot and Low Kick hit it for 80 base
power. That is a real consideration in a format where both are common.
Its move pool
Samurott-Hisui learns 78 moves in the Champions data.
58 of them do damage, across 9 of the eighteen
types, and 26 share a type with it and so get the same-type bonus.
Its hardest-hitting same-type move is Hydro Cannon at 150 base power.
It also has priority: Upper Hand at +3, Sucker Punch at +1 and Aqua Jet at +1.
That pool is what the team builder reads from when you seat it, and the
damage calculator will take it as the attacker with
the form already chosen.