Gengar

Mega Gengar holds an 8.54% usage rate at rank 21 in singles, sitting firmly in the second tier. Shadow Tag at 100% locks the Pokemon into a role centered on trapping opponents, and every move and spread choice flows from that premise. Shadow Ball and Sludge Wave together account for nearly 40% of move selections, giving it reliable finishing power against mid- and low-speed targets. Quadruple weaknesses to Ground, Psychic, Ghost, and Dark leave it thin against priority and Ground-type attackers, so the set leans heavily on Protect and team support to compensate.

Playstyle：Shadow Tag pins the opponent while Shadow Ball and Sludge Wave clean up, with Perish Song and Destiny Bond forcing switches or punishing them and dragging games into short, high-stakes exchanges. Protect at 17.5% reveals the player's awareness of the quadruple weaknesses, and predicting priority hits or Ground switches is table stakes. The most common partners, Primarina and Garchomp, patch Mega Gengar's biggest holes: Primarina absorbs Ground and Psychic hits, while Garchomp removes Ghost walls and Steel-types that resist Shadow Ball.

✅ Favorable matchups1

Archaludon

⚠️ Unfavorable matchups1

Garchomp

Gengar holds a 3.09% share in singles at rank 51. The Ghost-Poison typing grants immunity to Normal and Fighting alongside a quarter reduction from Poison, while 130 Special Attack and 110 Speed define its role as a first-strike cleaner. Focus Sash occupies 95.2% of item slots and Cursed Body is the only ability listed, and the entire build revolves around a single-turn burst pivoting on Destiny Bond mind games. Speed ties at 110 are routine.

Playstyle：Shadow Ball leads at 21.8% as the damage backbone; Icy Wind at 17.9% doubles as a Ground deterrent; Focus Blast at 11.0% plugs the Steel- and Rock-shaped holes; Sludge Wave at 10.7% and Sludge Bomb at 9.9% share the Fairy-targeting Poison STAB. A 95.2% Focus Sash rate frames Gengar as a one-shot explosive: land Shadow Ball or Sludge Wave for a KO, and on the way out trigger Destiny Bond at 9.7% to drag the opponent's core down with it. The 71.1% Timid spread pours EVs into Special Attack and Speed to outspeed Ground-, Psychic-, and Dark-type threats long enough to land a hit or layer Toxic Spikes at 6.3%.

Gengar manages only 0.30% in doubles at rank 119. Trick Room at 2.1% and Psychic at 1.8% are nearly absent, ceding most control duties. Focus Sash at 92.7% mirrors singles, but Destiny Bond trades poorly when both opponents switch and punish. The role drifts away from one-shot cleaning and toward a multi-turn Poison-support shell.

Playstyle：Shadow Ball at 24.7% and Sludge Bomb at 23.2% split the offensive load almost evenly. Icy Wind at 16.8% layers team-wide Speed control, Will-O-Wisp at 13.9% is a doubles-flavored softening tool, and Taunt at 6.7% with Protect at 6.1% pads the utility margin. Timid max-Special Attack / max-Speed spreads at 45.6% and 36.2% still dominate; the Quiet 32.0/0/1/32.1/0 spread at 4.8% appears only inside Trick Room builds. Partners center on Incineroar at 12.5%, Clefable at 8.8%, Metagross at 8.8%, and Audino at 8.7%—the first brings Fake Out and terrain control, the latter three carry durability and status.