What it does on the ladder
Decidueye-Hisui appears on 0.32% of Regulation M-B teams, which
is 117th of the 282 Pokémon with enough games to measure.
The move it almost always carries is Leaf Blade, on 97.4% of sets.
The item is usually Scope Lens at 48.2%.
The ability is split: Scrappy on 99% and Overgrow on 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
Decidueye-Hisui is number 724 in the National Dex, a Alola Pokémon, Grass and Fighting
with a base stat total of 530 — 39th of the 234 Pokémon
legal in this regulation. Its best stat is Attack at 112, 53rd
in the format; its weakest is Speed at 60, 173rd.
It can have Overgrow and Scrappy.
The Champions module tiers it UU.
It sits in a 3-stage line: Rowlet → Dartrix → Decidueye-Hisui.
Not all of that line is legal in this regulation — Rowlet and Dartrix are not.
What gets through
As Grass and Fighting, 6 of the eighteen attacking types do extra damage to it, and Flying lands for quadruple. It
resists 6. The board above
has all of it. One other legal Pokémon shares the same typing and the same board: Chesnaught.
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 Decidueye-Hisui takes extra damage from.
- Incineroar — Flare Blitz (Fire, ×2), on 91.2% of its sets
- Charizard-Mega-Y — Heat Wave (Fire, ×2), on 99.2% of its sets
- Whimsicott — Moonblast (Fairy, ×2), on 93.9% of its sets
- Sneasler — Dire Claw (Poison, ×2), on 63% of its sets
- Farigiraf — Psychic (Psychic, ×2), on 54.4% of its sets
- Floette-Mega — Dazzling Gleam (Fairy, ×2), on 95.9% of its sets
Against its own formes
Decidueye 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 HP at 88, Attack at 112 and Defense at 80 of the 2.
It has the lowest Sp. Atk at 95, Sp. Def at 95 and Speed at 60.
The others are Decidueye.
Speed and weight
At level 50 with a boosting nature and full investment, Decidueye-Hisui reaches
123 Speed; left uninvested with a neutral nature it sits at
80. Invested, it outruns 1 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 37 kg, so Grass Knot and Low Kick hit it for 60 base
power. That is a real consideration in a format where both are common.
Its move pool
Decidueye-Hisui learns 77 moves in the Champions data.
47 of them do damage, across 9 of the eighteen
types, and 22 share a type with it and so get the same-type bonus.
Its hardest-hitting same-type move is Focus Punch at 150 base power.
It also has priority: Upper Hand at +3, Sucker Punch at +1 and Shadow Sneak 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.
