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Art by Bummer.
Since the first generation of Pokémon, Gengar has always been a top-tier threat in OU, yet it wasn't until Gen 6 that Gengar found a home in Ubers. Gengarite turned Gengar into a huge threat, making it one of the best revenge killers thanks to its great Speed and Special Attack and, most importantly, its Shadow Tag ability, and it finds itself as one of the top Megas in Ubers. It is arguably more versatile in AG, though, and it also appreciates some of its checks, such as Primal Groudon and Arceus-Ground, being less common in AG than in Ubers. Mega Rayquaza's existence invalidates some Ubers-useful Megas like Mega Salamence and Mega Lucario. The lack of Species Clause in AG as compared to Ubers makes Arceus formes very prevalent, and Mega Gengar's great Speed tier and ability make it a fearsome threat to multiple-Arceus teams. Mega Gengar serves as a great offensive threat for teams that need checks to both offensive and defensive Pokémon like Extreme Killer Arceus, Xerneas, Arceus-Fairy, Chansey, and Lugia. Shadow Tag makes it very effective at removing threats to assist teammates, as well as dismantling stall teams. However, unlike in Ubers, Gengar faces fierce competition from Mega Rayquaza for the Mega slot due to the latter's amazing offensive presence and raw power, but it performs well regardless.
Besides Mega Gengar's amazing Shiny sprite, it has a large asset of good qualities that let it function well. A great Speed stat coupled with a Ghost typing lets it outspeed key threats like Arceus formes and Mega Rayquaza while being immune to Extreme Speed. Gengar also has a colorful movepool consisting of a variety of good moves: solid STAB moves, utility in Taunt and Perish Song, status moves like Hypnosis and Will-O-Wisp, and coverage attacks like Focus Blast. What is definitely Mega Gengar's best trait, though, is its access to Shadow Tag, which lets it easily trap and remove what it wants to and perform as a very effective revenge killer. Its Poison typing coupled with its ability lets it trap and beat Fairy-types like Arceus-Fairy. All these great qualities in tandem with each other allow Mega Gengar to be the powerhouse it is in the metagame, setting it apart from Mega Rayquaza.
However, even this great ghost has its faults. Firstly, and probably most importantly, using Mega Gengar disallows the use of the amazing wallbreaker Mega Rayquaza, giving Mega Gengar fierce competition, especially on offensive teams. Mega Gengar is also very frail and gets KOed or takes large amounts of damage from most unresisted attacks, making it harder for it to trap and defeat certain Pokémon, especially bulkier foes with offensive presence. Also, while Gengar is good at picking and choosing what it likes to take on, it is still forced out by many common Pokémon such as Zygarde-C, Yveltal, Marshadow, and Deoxys-A. Gengar is also easily Pursuit trapped by Pokémon like Alolan Muk, Tyranitar, and Deoxys-A.
Good Sets |
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Offensive Trapper
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Hypnosis Trapper
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Perish Trapper
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Click on an image to reveal the set!
Probably Mega Gengar's most common set, this set works as a very effective revenge killer for Pokémon like Arceus and Mega Rayquaza and is also capable of shutting down many defensive threats with the combination of Shadow Tag and Taunt. Due to its ability to check many Arceus formes (defensive and offensive alike), this set works great against multiple-Arceus teams, which Mega Rayquaza is less effective against. It is also very effective at deterring many threats such as Arceus-Fairy and Lugia from switching in, as they risk being trapped and removed, greatly assisting teammates like Arceus-Dark and Xerneas that appreciate these Pokémon being eliminated. Full Baton Pass teams, which are illegal in Ubers, are also sometimes threatened by Mega Gengar, unless they have attained enough Speed boosts.
This set is infamous for being banned from the Uber tier, following in Mega Rayquaza's footsteps. Hypnosis Mega Gengar was determined to be too much for even the Uber tier to handle due to its unfairness and high luck factor, especially because Shadow Tag essentially eliminated Sleep Clause. However, in Anything Goes, nothing is stopping Mega Gengar from using Hypnosis, and it is a very legitimate strategy. If Hypnosis hits, Hex hits extremely hard, and Gengar is even able to set up Substitute while the foe is sleeping. While Hypnosis + Hex is a very luck-based strategy, Gengar can sometimes take out large chunks of teams. However, this set's luck factor deters some players from using it, though it remains a good wincon that's quite annoying for opponents to face—just hope that they miss.
A much more niche set, Perish Song Mega Gengar utilizes Shadow Tag to eliminate certain Pokémon from the field and is also helpful for destroying Baton Pass chains. Mega Gengar's great Speed tier allows it to set up Substitute on most Pokémon and easily stall out Perish Song turns, but its frailty can very much hurt this set. It is sometimes unable to use Perish Song, as it would take large amounts of damage in doing so or even be OHKOed. This set is best used to eliminate defensive Pokémon like support Arceus formes, though it cannot take out certain defensive Pokémon like Primal Groudon and Arceus-Ground. While it is generally outclassed by Gengar's other sets, it retains a niche.
Mega Gengar + Arceus-Dark shines as a great offensive core, since the two of them cover each other very well. Mega Gengar is able to take care of troublesome Fairy-types like Arceus-Fairy and Xerneas, and in return, Arceus-Dark can cover Dark-types, most notably Yveltal, as well as Deoxys-A (sometimes). Mega Gengar is able to trap and remove the Fairy-types that annoy Arceus-Dark, setting it up for a late-game Calm Mind sweep. However, this core does get troubled by Marshadow (especially Life Orb variants), Ho-Oh, and Magearna.
While Gengar can be used to take out Fairy-types, it also works well with them. Mega Gengar is able to trap and eliminate some of Xerneas's checks, such as Primal Groudon, Lugia, and Ho-Oh, especially if it is using Destiny Bond or Perish Song. Depending on Xerneas's set, Gengar can either set it up for a late-game Geomancy sweep or benefit from Choice Specs Xerneas's wallbreaking power. However, this core struggles with both Primal Groudon (especially Roar variants) and Ho-Oh.
Similarly to Arceus-Dark, Zygarde appreciates Gengar's ability to beat Fairy-types, especially Arceus-Fairy. Gengar is also able to trap some of Zygarde's other roadblocks, like Lugia, Xerneas, and even Arceus-Grass. Trapping and removing Zygarde's checks allows it to set up with Dragon Dance and possibly sweep. In return, Zygarde's good bulk, especially after transforming, allows it to sponge attacks from Marshadow, Primal Groudon, and Ho-Oh, which all trouble Mega Gengar. This core, however, has trouble with Deoxys-A, especially those found on Psychic Terrain teams, and Zygarde and Gengar's somewhat underwhelming offensive presence makes setting up a sweep harder.
Mega Gengar finds itself best used on offensive teams that need a check to specific offensive and defensive threats like Arceus and Lugia. The ability to easily trap and eliminate threats can put the Gengar user in an inherently advantageous position, since the opponent is forced to predict whether Mega Gengar is coming in or not. As seen from the previous section, Gengar works well with setup sweepers, as it is able to easily remove defensive checks that may stop a sweep. However, unlike in Ubers, where Gengar is a good fit on any offensive team, Gengar is sometimes hard to justify using over Mega Rayquaza, which offers much more offensive presence and raw power, making it a prime fit for any offensive team. Gengar is generally more of a specialized pick for teams that need its specific capabilities and isn't really a Pokémon that can be thrown onto any team.
Mega Gengar is one of the trickiest Pokémon to play around—which may be representative of its sneakiness as a ghost—due to Shadow Tag. Mega Gengar is able to easily pick and choose what Pokémon it wants to face, making it difficult to get your Gengar check in without losing a Pokémon. Gengar does have its fair share of checks, though, which include: Ho-Oh, thanks to its amazing special bulk; Marshadow, because its Shadow Sneak is capable of dealing huge amounts of damage to or even OHKOing Mega Gengar; Zygarde-C, because of its great bulk and super effective coverage; Arceus-Dark, due to its good bulk and type advantage; and Yveltal, because Sucker Punch is capable of OHKOing Gengar, forcing the player into a risky position. Due to Gengar's increased versatility in AG compared to its role in Ubers, it is best to try and ascertain the opposing Gengar's set first because different sets have to be dealt with differently; if you're not careful, for example, a well-played Hypnosis Mega Gengar can put you in a very disadvantageous position. Shadow Tag can change a regular game and force both players to make high-risk predictions, where one wrong move can cause the player to lose a key Pokémon. Overall, playing around Mega Gengar is quite difficult to do—it seems that it upholds its status as the original ghost, being very tricky and sneaky.
All in all, Mega Gengar is an amazing Pokémon in the Anything Goes metagame, and it differs from its Ubers counterpart quite a lot. Although it does have its fair share of flaws, it has a myriad of great qualities and uses. Give it a try on your next Anything Goes team (and stop using Mega Rayquaza all the time)!
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