The competitive landscape of Pokémon is often defined by its "gimmicks"—the generational mechanics that temporarily rewrite the rulebook. In Generation 6, Mega Evolution introduced a paradigm shift where a single Pokémon could ascend to god-tier status. Generation 7 countered with Z-Moves, providing every team member a one-time "tactical nuke" to bypass traditionally impassable walls.
Though these mechanics have been retired in the current VGC and Smogon formats of Scarlet & Violet, their shadows loom large over the history of the game. They weren't just flashes in the pan; they were meta-defining tools that turned mid-tier threats into terrors and made legends even more legendary.
To truly understand how we got to the Tera-dominated world of today, we must look back at the most impactful titans of the Mega and Z eras. Here is the definitive ranking of the ten best to ever do it.
10. Mega Metagross: The Steel-Type Steamroller When Omega Ruby & Alpha Sapphire introduced Mega Metagross, it fixed every problem the original pseudo-legendary had. Its base speed shot up to 110, allowing it to outpace the crowded base 100-108 tiers, and its ability, Tough Claws, gave its contact moves a 30% boost.
Meta Metagross was the definition of "bulky offense." In the Smogon OU tier, it was so oppressive that it eventually saw a ban to Ubers. Its ability to switch into a flurry of resistances and then threaten an immediate KO with Meteor Mash or Zen Headbutt made it a nightmare to switch into.
- ▹Sample Set: Meteor Mash, Zen Headbutt, Ice Punch, Stomping Tantrum.
- ▹Why it worked: The 30% boost from Tough Claws meant it didn't need a Life Orb to deal massive damage, allowing its natural bulk to shine.
9. Z-Celebrate / Z-Happy Hour: The Secret Buffs While most Z-Moves were offensive, some of the most influential were status-based. Using a Z-Crystal on a non-damaging move often granted a massive secondary effect. "Event moves" like Celebrate and Happy Hour, when empowered by Normalium Z, granted the user a +1 boost to every single stat.
Pokémon like Jirachi, Victini, and Shaymin became terrifying sweepers with this tech. By clicking Z-Celebrate, they effectively used Dragon Dance, Calm Mind, and Bulk Up all at once. If your opponent didn't have a reliable Phazing move like Whirlwind or Roar, the game was over in one turn.
8. Mega Lucario: The Adaptability Engine Mega Lucario was essentially the "glass cannon" archetype perfected. Upon Mega Evolving, it gained Adaptability, increasing its STAB (Same Type Attack Bonus) from 1.5x to 2x. This turned Close Combat and Flash Cannon into moves that could OHKO even neutral targets.
In the XY era, Mega Lucario was the first "standard" Pokémon to be banned to the Ubers tier. It simply had no safe switch-ins. If you sent in a physical wall, it could hit you with a Nasty Plot-boosted Aura Sphere. If you sent in a special wall, Close Combat would erase it. Its versatility across both physical and special spectrums made it a premier threat in any format it touched.
7. Clangorous Soulblaze (Kommo-o) Kommo-o struggled in early Gen 7 because of its 4x weakness to the ubiquitous Fairy-type. Ultra Sun & Ultra Moon fixed this by giving it a signature Z-Move: Clangorous Soulblaze.
This move was a 185-power special Dragon-type attack that hit both opponents in a doubles match. Its secondary effect? Raising every one of Kommo-o’s stats by one stage. In the VGC 2018 format, this move was the ultimate "protect the castle" strategy. If Kommo-o successfully fired off this move, it became a fast, bulky, and incredibly powerful win condition that demanded an immediate answer.
6. Mega Mewtwo Y: The Ultimate Special Attacker While Mewtwo was already a legend, its Y-Mega Evolution pushed its Special Attack to a staggering base 194. This made it the hardest-hitting special attacker in existence at the time. With Insomnia, it also became a hard counter to Darkrai’s Void, which was a dominant strategy in the Ubers tier.
Mega Mewtwo Y taught us that sometimes, raw stats are enough. It didn’t need a fancy ability like Parental Bond; it just needed to click Psystrike and watch things disappear. It remains one of the most mechanically "pure" powerhouses in the history of the game.
5. Mega Gengar: The Shadow Tag Trapper Mega Gengar is often cited as one of the most "unhealthy" additions to the game by competitive analysts, and it’s easy to see why. Its ability, Shadow Tag, prevented the opponent from switching out.
In a game where switching is the primary way to manage threats, Mega Gengar removed that choice. If Mega Gengar came in on a Pokémon it could kill, that Pokémon was dead. Period. It could also use Perish Song and simply wait for the opponent to succumb while it protected or substituted. It was so powerful that it remained a top-tier threat in the Ubers tier (the tier for Pokémon "too good" for standard play) for two straight generations.
4. Let’s Snuggle Forever (Mimikyu) Mimikyu was the breakout star of Gen 7, and its Z-Move, Let’s Snuggle Forever, turned its Disguise ability into an offensive powerhouse. Mimikyu’s Disguise gave it a free turn to setup Swords Dance, after which a 190-power Fairy-type Z-Move could bypass almost any defensive check.
The sheer reliability of Mimikyu was its greatest strength. You were almost guaranteed to get your Z-Move off, making it the premier "revenge killer" and late-game cleaner of its era.
3. Mega Mawile: The Power of Huge Power At first glance, Mawile’s stats look mediocre. But Mega Mawile possessed Huge Power, which doubled its already respectable Attack stat. With a base Attack of 105 effectively becoming a stat equivalent to over 210, Mega Mawile hit harder than almost anything in history.
The Power of Iron Head and Play Rough 1. Sucker Punch: Provided the necessary priority to overcome its low speed. 2. Play Rough: A devastating STAB that could 2HKO even the most dedicated physical walls like Skarmory. 3. Intimidate: Its pre-Mega ability allowed it to soften physical hits before Evolving.
Mega Mawile was a masterclass in how an ability can redefine a Pokémon. It wasn't just a threat; it was a wall-breaker that forced every team to carry a dedicated counter, like Heatran or Landorus-Therian.
2. Mega Kangaskhan: The Parental Bond Menace If you played VGC 2014 or 2015, you have nightmares about Mega Kangaskhan. Its ability, Parental Bond, allowed it to hit every move twice (the second hit dealt 50% damage in Gen 6, nerfed to 25% in Gen 7).
This wasn't just about a 1.5x damage boost. Hitting twice meant: Breaking through Focus Sashes and Sturdy. Two chances to trigger secondary effects, like the Power-Up Punch attack boost or the Body Slam paralysis. * Two chances to flinch with Fake Out.
Mega Kangaskhan was so dominant that the "CHALK" team (Cresselia, Heatran, Amoonguss, Landorus, Kangaskhan) became the gold standard of the format. It was the face of Mega Evolution's raw power.
1. Mega Rayquaza: The God of the Skies There is no debate: Mega Rayquaza is the most powerful Pokémon ever created. It is the only Pokémon that does not require a Mega Stone to evolve; it only needs to know the move Dragon Ascent. This allowed it to hold a Z-Crystal or a Life Orb while in its Mega Form.
Mega Rayquaza was so powerful that Smogon had to create a new tier entirely, "Anything Goes" (AG), because it broke the Ubers tier. Its ability, Delta Stream, removed its Flying-type weaknesses and altered the weather to its advantage.
In the Delta Stream, Rayquaza wasn't just an offensive monster; it was surprisingly difficult to take down. It combined the highest BST (Base Stat Total) in the game with the ability to hold an item, making it the undisputed king of Pokémon history. Whether in the anime (taking on both Primal Kyogre and Primal Groudon at once) or on the ladder, Mega Rayquaza was the pinnacle of the mechanic.
---
Honoring the Runner-Ups It's impossible to list every great Mega or Z-Move without mentioning a few honorable mentions: Mega Salamence: Known as "the flying croissant," its Aerilate-boosted Double-Edge was a terrifying force in 2015-2018. Ultra Necrozma: The ultimate boss fight of Ultra Sun & Moon, utilizing the Light That Burns the Sky Z-Move to ignore abilities and deal massive damage. Mega Gardevoir:* The Pixilate Hyper Voice queen that could bypass Substitutes and shred Dark-types.
Strategy: How to Build Around These Mechanics To use these tools effectively, you had to understand the "One-Per-Game" rule. Building a team around Mega Kangaskhan meant you couldn't use Mega Salamence. This created a fascinating "teambuilder's puzzle" that today’s Terastalization—which any Pokémon can use—lacks.
With Z-Moves, the strategy was often lure-based. You might run Firium Z on a Greninja to bait in and destroy an unsuspecting Ferrothorn that thought it was safe against a Water-type. This level of deception added a layer of psychological warfare to Pokémon that remains unmatched.
---
Final Thoughts Mega Evolutions and Z-Moves represented a Golden Age of competitive Pokémon. While Megas focused on giving older favorites a new lease on life and a definitive "ace" status, Z-Moves democratized power, allowing any Pokémon to become a threat for one turn.
Though we have moved on to Dynamax and Terastalization, the community continues to look back at Gen 6 and 7 with fondness. They were eras of extreme power, yes, but also eras of extreme creativity. Whether it was a Rayquaza descending from the ozone layer or a Mimikyu unleashing a snuggly doom, these mechanics changed the way we played the game forever.
What was your favorite Mega or Z-Move? Let us know in the comments below!
Enjoyed this?
Share it with another Trainer.