What it does on the ladder
Hydreigon appears on 1.9% of Regulation M-B teams, which
is 55th of the 277 Pokémon with enough games to measure.
The move it almost always carries is Dark Pulse, on 94.1% of sets.
The item is usually Choice Scarf at 65.6%.
Every one of them runs Levitate.
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
Hydreigon is number 635 in the National Dex, a Unova Pokémon, Dark and Dragon
with a base stat total of 600 — 6th of the 234 Pokémon
legal in this regulation. Its best stat is Sp. Atk at 125, 14th
in the format; its weakest is Sp. Def at 90, 73rd.
Its only ability is Levitate.
The Champions module tiers it OU.
It sits in a 3-stage line: Deino → Zweilous → Hydreigon.
Not all of that line is legal in this regulation — Deino and Zweilous are not.
What gets through
As Dark and Dragon, 5 of the eighteen attacking types do extra damage to it, and Fairy lands for quadruple. It
resists 6 and is immune to 1. The board above
has all of it. No other legal Pokémon has this typing.
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 Hydreigon takes extra damage from.
- Garchomp — Dragon Claw (Dragon, ×2), on 91.2% of its sets
- Sneasler — Close Combat (Fighting, ×2), on 99.9% of its sets
- Whimsicott — Moonblast (Fairy, ×4), on 96.7% of its sets
- Floette-Mega — Dazzling Gleam (Fairy, ×4), on 97.8% of its sets
- Staraptor-Mega — Close Combat (Fighting, ×2), on 100% of its sets
- Raichu-Mega-Y — Focus Blast (Fighting, ×2), on 94% of its sets
Speed and weight
At level 50 with a boosting nature and full investment, Hydreigon reaches
165 Speed; left uninvested with a neutral nature it sits at
118. Invested, it outruns 10 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 160 kg, so Grass Knot and Low Kick hit it for 100 base
power. That is a real consideration in a format where both are common.
Its move pool
Hydreigon learns 106 moves in the Champions data.
71 of them do damage, across 15 of the eighteen
types, and 18 share a type with it and so get the same-type bonus.
Its hardest-hitting same-type move is Draco Meteor at 130 base power, though the biggest number in the pool is Giga Impact at 150.
It has no priority move, so it moves in Speed order every turn.
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.
