Hydreigon Deck
0.5% of the meta · Updated June 10, 2026
Win Rate
47.7%
Meta Share
0.5%
Core Cards
1
Estimated Pack Cost
300
estimated packs to collect all core cards
1x Rare~300/ea
HydreigonRare
Mega Gyarados300 pks
Estimates based on pull rates. Actual results may vary.
Core Cards
Key Moves & Abilities
AbilityRoar in Unison(Hydreigon)
Once during your turn, you may take 2 {D} Energy from your Energy Zone and attach it to this Pokémon. If you do, do 30 damage to this Pokémon.
Hyper Ray(Hydreigon)
130Discard all Energy from this Pokémon.
Strategy Guide
Auto-generatedHydreigon self-charges via Roar in Unison to power up Hyper Ray's 130 damage every two turns, racing to knock out high-HP threats faster than they can set up. The win condition is landing two or three Hyper Ray attacks before the self-damage from charging accumulates enough to end Hydreigon's run.
Open by searching Deino with Poké Ball and then drawing toward Rare Candy with Professor's Research and Copycat. Once Hydreigon is active, use Roar in Unison to attach two Darkness energy from the Energy Zone each turn — accepting 30 damage to self — and attack with Hyper Ray for 130. After Hyper Ray discards all energy, you recharge immediately the following turn. Lucky Ice Pop and Pokémon Center Lady manage the accumulated self-damage, while Poison Barb and Nihilego add residual pressure on the opponent's side. Cyrus and Sabrina manipulate target selection to ensure each Hyper Ray connects with the most valuable knockout.
Damage Math
Hydreigon each turn it activates Roar in Unison
30 self-damage per Roar in Unison use
150 HP Hydreigon can sustain roughly five uses before self-damage alone reaches lethal without healing
Opponent's active
Hyper Ray 130 dmg base
OHKOs most non-ex Stage 2 Pokemon; two-shots most ex attackers at 170-200 HP
Strengths
- Roar in Unison provides built-in energy acceleration from the Energy Zone, meaning you never rely on manual attachment to power Hyper Ray.
- 130 damage from Hyper Ray one-hit-KOs most non-ex Pokemon and two-shots ex attackers, giving reliable knockout math across common matchups.
- 75% win rates against Palkia ex, Celebi ex, and Charizard ex position Hydreigon strongly against several popular archetypes.
Weaknesses
- Roar in Unison deals 30 damage to Hydreigon each turn it is used, rapidly depleting its own HP without Lucky Ice Pop or healing.Other
- Donphan ex, Pawmot, and Mega Ampharos ex all post 75% win rates against Hydreigon, representing hard counters that outpace its damage output.Matchup
- Hyper Ray discards all energy after each use, requiring a full recharge turn with Roar in Unison before the next Hyper Ray, leaving Hydreigon vulnerable.Tempo
How to Play
Cycle Hyper Ray Every Other Turn
Use Roar in Unison on the turn after each Hyper Ray to immediately refuel. This creates a two-turn attack cycle: charge then blast. Poison Barb on Hydreigon deals residual damage during the charging turn so you are not completely passive while refueling. Lucky Ice Pop offsets the self-damage from Roar in Unison.
Key cardsHydreigonPoison BarbLucky Ice Pop
Reach Hydreigon Fast with Rare Candy
Poké Ball finds Deino, then Rare Candy skips Zweilous to put Hydreigon into play. Professor's Research and Copycat draw through the deck. The earlier Hydreigon enters play, the fewer turns the opponent has to set up before Hyper Ray starts landing 130-damage hits.
Key cardsDeinoRare CandyHydreigonProfessor's Research
Control Target Selection with Cyrus and Sabrina
Cyrus forces a benched Pokemon into the active spot, letting you choose the knockout target rather than accepting whatever the opponent presents. Sabrina performs the same function. Directing Hyper Ray at the highest-value target — an ex attacker with few hit points remaining — maximizes each 130-damage swing.
Key cardsCyrusSabrinaHydreigon
How to Beat This Deck
Exploit the Self-Damage Accumulation
Every activation of Roar in Unison deals 30 damage to Hydreigon. After five uses without healing, Hydreigon is already at 150 damage on itself. Attack into it consistently so that accumulated self-damage plus your attack damage reaches the 150 HP threshold faster than Lucky Ice Pop can offset. Timing your offensive turns around the Hyper Ray discard cycle maximizes this.
CountersPokémon Center LadyLucky Ice Pop
Pressure Hydreigon During the Recharge Turn
The turn after Hyper Ray fires, Hydreigon has no energy and must spend Roar in Unison to recharge rather than attack. Use this window to deal heavy damage or set up a knockout. High-damage attackers that can swing for 100 or more during that window turn the self-charge cycle into a liability.
Run Donphan ex or Mega Ampharos ex for Structural Advantage
Both Donphan ex and Mega Ampharos ex hold 75% win rates against Hydreigon. These archetypes outpace the two-turn charge-attack cycle with either raw HP walls or consistent faster damage that knocks out Hydreigon before it lands enough Hyper Ray attacks to win the point race.
CountersDonphan exMega Ampharos ex
Common Substitutions
Secondary attacker or disruption
- Nihilego:In 69.29% of lists; supplements Hydreigon with a separate attacker or disruption tool
- Absol:In 51.97% of lists; cheap Darkness attacker that can threaten knockouts on weakened targets
- Zoroark:In 47.24% of lists; another Darkness attacker that adds flexibility when Hydreigon is recharging
Healing and damage mitigation
- Lucky Ice Pop:In 88.98% of lists; essential to offset the 30 self-damage per Roar in Unison activation
- Pokémon Center Lady:In 36.22% of lists; additional healing that extends Hydreigon's survival window
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Matchups
Threats — Weak Against
Based on type weakness analysis of core cards. View full matchup matrix →