Marvel Rivals rewards you for stacking heroes that share a team-up. Pick the right partners and a bonus switches on, a passive buff or a shared ability or an ult modifier that makes the anchor noticeably stronger. What is less obvious is that sharing a team-up does not automatically mean the pair wins more, and the community data is where you find out which ones actually do.
What a team-up actually is
Each season ships with a set of defined team-up pairings and trios. When the required heroes are on the same lineup, the bonus is on; when they are not, it is off. NetEase publishes the current roster each season and reshuffles it over time. That is the part that separates Marvel Rivals from Overwatch, where a synergy is just two kits that happen to overlap well. Here it is a rule baked into the game. Either the partner is on your team and the bonus is live, or they are not and it is not.
How team-ups show up in our data
The synergy win rate on a hero's page aggregates every tracked match where both heroes shared a lineup, whether the team-up was fully active or only partly satisfied. So the number blends matches where the bonus was on with matches where it was off. A high synergy win rate tells you the pair reliably wins when they share a team, without us claiming the bonus itself caused it. For the pairs below, the match counts are big enough to trust the edge.
Three pairs winning more than most
These come from recent Marvel Rivals Standard data, all ranks, all game types. They move between patches and team-up reshuffles, so treat the exact decimals as a snapshot rather than a constant. They were picked for sample size and role coverage.
Gambit and Rogue, 54.2% over ~16,400 matches
The highest-sample synergy pair in the current data. Both are X-Men, and they anchor one of the cleanest team-up interactions in the game. Gambit is a Strategist and Rogue is a Vanguard, so the pair plays as frontline commitment plus a setup-heavy support rather than two damage dealers stacking. With over 16,000 tracked matches behind it, this is one of the most confident synergy numbers on the site. If you are already planning to pick either, locking the partner is an easy bump to your odds.
Spider-Man and Peni Parker, 55.4% over ~7,700 matches
The Web-Warriors pairing. Peni Parker is a Vanguard whose trap-heavy kit locks down a position for the team to regroup into, and Spider-Man is a Duelist who can over-extend on his web mobility knowing there is crowd control waiting if the enemy dives back. The two cover each other almost perfectly. A ~7,700-match sample is enough to trust, and a 55% edge is sizeable in a game where most synergies settle in the 52 to 54 range.
Hela and Namor, 55.2% over ~8,400 matches
Two Duelists, which is unusual, since most high-synergy pairs in the data cross roles. Hela's ranged precision plus Namor's turret-anchored zone control means the enemy has to push through a corridor Hela already has a sightline on, and if they flank instead, Namor's turrets catch them. The pair fades on open-sightline maps where the turrets are easy to burst, but on maps with real choke structure it has been one of the quieter standouts this season.
Top duos versus best kit synergies
Every hero page exposes two views on its strongest-duos card. The default, Top duos, ranks pairings by absolute combined win rate, which is what the three numbers above show. That answers who is strong right now alongside this hero, and it bakes in both heroes' individual meta strength, which is usually exactly what you want when you are picking for the current patch.
The Best kit synergies toggle subtracts each hero's individual edge from the pair's win rate before ranking. If two 55% heroes post a 60% pair win rate, that is exactly what their individual strength already predicted, so the kit synergy is zero. A 62% pair from the same two is a real lift over baseline, a sign that something, kit interaction or team-up bonus or both, is producing extra win rate independent of how strong each hero is alone. Numbers in this view are deltas over expected, with the subtitle "Lift over expected when paired with X."
For team-up planning, the kit-synergies view is the more useful read. Two strong meta heroes who happen to share a team-up will look great under Top duos whether or not the bonus is doing any work, while Best kit synergies pulls the individual-strength noise out, so a high residual means the pairing is winning more than the heroes' solo strength predicts. Use Top duos to ask who you want on your team this patch, and Best kit synergies to ask whose abilities actually combo with this hero.
How team-ups bend the counter read
The counters on a hero's page are averaged across team-up states too, so a 54% matchup is a blend of team-up-active and team-up-inactive matches. The hero's real edge with the bonus online is higher than 54%, and lower without it. In practice, if your team already has the partner, a soft counter is a bit stronger than the aggregate suggests, enough to tip a 52% into the 53 to 54 range. The reverse holds against you, so watching which pairs the enemy locks tells you how their damage and sustain will scale.
Building around a team-up
The strongest Marvel Rivals comps do not pick the best five heroes in a vacuum. They pick a team-up anchor and fill the rest with heroes that cover the archetype gaps. Pick the pair you want to run, use the team builder to fill the other three slots against the enemy lineup so you can see which fillers keep your anchor's synergy intact, and check the map before you lock, since zone-control pairs lose edge on maps with multiple flanks and mobility pairs lose edge in narrow corridors. Mid-match, the Counterwatch app runs the same scoring live, and when the enemy picks a comp that neutralises your team-up it surfaces swap candidates as the picks happen.