Where the data comes from
All of it from marvelrivals.com. None of it estimated.
The roster and hero pages
The roster, roles, release dates and art come from the official heroes page. Each hero's real name, bio, health and abilities — key, description, icon and the full stat table — come from that hero's official article. Heroes with several forms (Hulk, Cloak & Dagger) have their abilities grouped by form, as the official page does. Collected 14 Oct 2026.
Official win rates
Win rates and pick shares are the ones NetEase publishes on its heroes data page, for PC and console, Quick Play, and each competitive rank it reports. The latest update stored is from 6 Oct 2026. Every update is kept, so the site can show the change since the previous one; until two have been collected, those columns read as a dash.
Pick share is the share of picks within the hero's own role — each role adds up to 100% — so it compares only within a role. That is how NetEase publishes it.
The Team-Up list
Team-Up names, partners and effects come from the official Team-Up page; their values come from the anchor hero's own ability table. The effect labels used for filtering are keyword categories read off the effect text, not tags from the game. Collected 14 Oct 2026.
What did not come over
The original Rivals Lab app also had synergy rankings, per-map win rates, a "true win rate" without mirror matches, a team builder, matchmaking analysis and player profiles. All of them were computed from about 7,400 simulated matches, or from a stand-in player service that invented results for any name. Those numbers are not shown here: a simulated figure is indistinguishable from a real one to a reader, which is exactly the problem.
Its Team-Up "recommendation score" was built from the same simulated matches and was left out with them. See about for the rest.