Four Showdown Series events just gave us one of the clearest competitive snapshots before Barcelona RQ.

This article looks at what changed, what stayed stable, and which decks look most important going into next week.

This week matters because these four Showdown Series events are currently the most relevant competitive data points before Barcelona RQ. They are not small isolated results: together, they give the first serious picture of the Set 4 metagame in real tournament conditions.

For anyone preparing for Barcelona, this is the best available checkpoint right now. These tournaments help identify which decks are winning, which decks are popular, which decks may be overplayed, and which underrepresented strategies deserve more attention before the RQ.

The Four Showdown Series Events

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The four events in this snapshot are Auckland, Ottawa, Speyer, and Gen.G LA. Together, they represent the most relevant pre-Barcelona sample we have right now, with more than 1,600 players across North America, Europe, and APAC/Oceania.

Each event gave a clear winner signal:

  • 10K Showdown - Auckland Card Show: 301 players. Won by AbyssTCG Micah on Kennen, Heart of the Tempest. Early APAC/Oceania signal, with Kennen, Irelia, and Azir all showing strong top-end presence.
  • Riftbound Showdown Ottawa: 594 players. Won by Prismaticismism on Rengar, Pridestalker. The biggest North American sample of the week, and one of the strongest signals that Rengar is a real Barcelona threat.
  • Riftbound Showdown Series Germany - Speyer: 626 players. Won by Rocklho on Azir, Emperor of the Sands. The largest European checkpoint before Barcelona, and the clearest reason Azir cannot be dismissed as a fringe pick.
  • Gen.G LA Showdown Series: 128 players. Won by rmdljet on Rengar, Pridestalker. Smaller than Ottawa and Speyer, but important because it gives Rengar another first-place finish in a different field.

The main takeaway is that Kennen, Rengar, and Azir all converted at the top of real Set 4 events. Kennen looks like the deck to beat, Rengar has the strongest predator profile, and Azir has the tournament win that makes it impossible to ignore before Barcelona.

Je recommande ce format pour l’instant : il est lisible, compatible avec ton éditeur actuel, et beaucoup plus agréable qu’un tableau cassé.

The Big Meta Picture

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The first thing this map says is simple: Kennen is the deck to beat before Barcelona. It is the most played legend in the sample, with 9.3% play rate, and it still holds a strong 55.1% winrate across 1,795 matches. That is the most important signal on the chart. A deck can look good when nobody plays it and Kennen is clearly different because it is already the most visible deck in the room and still wins.

Rengar is the other obvious standout. It is less played than Kennen at 4.0% play rate, but it has the highest winrate among the major legends at 56.6%. That makes Rengar one of the most dangerous decks going into Barcelona: it is not just popular enough to matter, it is converting better than almost everything else.

Master Yi is also a major warning sign. At 6.0% play rate and 53.9% winrate, it is clearly performing, but it is not as overrepresented as Kennen. Mostly because the Proving Grounds Master Yi Best-of was not available.Players should expect Master Yi to be in the top 3 most played legend in Barcelona.

Irelia is the other high-volume deck that deserves real respect. With 7.8% play rate and 53.1% winrate, it is not just showing up; it is winning enough to stay in the top half of the map. I would not treat Irelia as a secondary deck before Barcelona.

Behind that first group, Azir, Rek’Sai, Draven, Diana, Ezreal, Jayce, Kha’Zix, and LeBlanc are the decks I would keep in the testing pool. Azir has 4.8% play rate with 52.5% winrate, Rek’Sai sits at 4.4% with 53.4%, and Ezreal is quietly strong at 3.4% with 53.1%. LeBlanc is lower in popularity, but 53.9% winrate is high enough that it should not be ignored.

The negative side of the map is also useful. Nasus, Akali, Mel, Ambessa, Vex, Lillia, Ornn, and Fiora are the kind of decks I would question harder right now. Some of them are played enough to appear in the field, but their winrates sit below the 50% line. That does not mean they are unplayable, but it does mean they need a strong reason to be chosen over Kennen, Rengar, Master Yi, Irelia, Azir, or Rek’Sai.

So the early Set 4 picture is already sharper than it looked at first: Kennen is the main deck to beat, Rengar is the highest-performing pillar, Master Yi may be underplayed relative to its strength, and Irelia/Azir/Rek’Sai look like the next serious tier of Barcelona preparation.=

Match up matrix

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The matchup matrix makes the meta picture much sharper. Kennen is not only the most played deck; it also has a strong overall winrate at 58.3%. But it is not unbeatable. The biggest warning signs are Rengar and Master Yi: Kennen is only at 41.7% into Rengar and 45.9% into Master Yi. That matters a lot for Barcelona because the best answer to the most popular deck may already be inside the expected top field.

Rengar looks like one of the best-positioned decks in the format. It has the highest overall winrate in this visible sample at 58.9%, and it lines up well into several important decks: 58.3% into Kennen, 55.3% into Irelia, 60.0% into Draven, 68.2% into Diana, and 61.1% into Master Yi. If the room is full of Kennen and other popular Set 4 decks, Rengar looks like one of the cleanest tournament choices.

Irelia is strong overall, but the matrix shows why it may be risky as a blind pick. Its total winrate is good at 55.2%, and it has excellent numbers into decks like Ezreal, Nasus, and Lillia. The problem is that it struggles into some of the most relevant expected decks: 46.6% into Kennen, 44.7% into Rengar, and only 36.4% into Rek’Sai. That makes Irelia powerful, but much more field-dependent than Kennen or Rengar.

Rek’Sai is the matchup deck I would take seriously. Its overall winrate is 55.7%, and it has very strong numbers into Irelia at 63.6%, Diana at 69.2%, Nasus at 72.2%, Akali at 65.0%, and Vex at 76.9%. The issue is that it does not clearly solve Kennen, sitting at 49.2% in that matchup. So Rek’Sai may be excellent if the field moves toward Irelia and mid-tier decks, but it is less convincing if Barcelona becomes mostly Kennen and Rengar

What This Means for Barcelona RQ

If Barcelona happened tomorrow, Kennen and Rengar would be the first decks to respect. Kennen is the safest baseline: it is the most played legend at 9.3% play rate and still holds a 55.1% winrate. Rengar is the sharper tournament pick: only 4.0% play rate, but 56.6% winrate and a strong 58.3% matchup into Kennen.

Master Yi, Azir, Irelia, and Rek’Sai need serious testing. Master Yi may be underplayed relative to its strength, with 53.9% winrate at 6.0% play rate. Azir and Rek’Sai look like real contenders, while Irelia is strong but more fragile: it struggles into Kennen, Rengar, and Rek’Sai.

The decks that might be overplayed are the ones sitting below 50% despite meaningful presence, especially Nasus, Akali, Mel, Ambessa, Vex, Lillia, Ornn, and Fiora. They may still have specific good matchups, but right now they need stronger justification than the top performers. I still expect Akali to be overplayed because her "best of" metal card will be worth a lot.

For Barcelona preparation, I would build testing around five questions:

  • Can your deck beat Kennen consistently?
  • Can it survive Rengar?
  • Do you have a real plan into Master Yi?
  • Are you testing enough into Rek’Sai and Azir?

Methodology and Limits

This article uses public tournament results, available decklists, and matchup data tracked by Riftools.

Some events may have incomplete public decklist coverage, so the conclusions should be read as

competitive signals rather than absolute predictions.

Explore the Data on Riftools