The archetype didn't resolve directly. Let me try a few alternative names and also check Legacy specifically.
Belcher is found in Modern but has minimal data. Let me search across formats with more variations and also check for it in Legacy specifically.
I can see there are several Belcher variants in Modern. The closest match to "Blue/Tameshi Belcher" is likely either "blue belcher" (f19aefd7) or "azorius belcher" (6536813c-4cf4-4b43-a042-b50aaf3ca535), possibly incorporating Tameshi, Reality Architect. Let me check which one uses Tameshi and get the winrate data.
"Blue Belcher" is clearly the correct archetype (Tameshi is its core card). Now let me get the matchup matrix and meta context.
Now let me get the matchup data for Blue Belcher vs the top Modern archetypes.
Here is the full breakdown for Blue/Tameshi Belcher (registered in the database as "Blue Belcher") in Modern from Aug 11 to Sep 15, 2026. Note: Tameshi, Reality Architect is the defining card of this archetype, appearing in over 2,200 of its decklists.
OVERALL WINRATE VS. METAGAME
226 W / 210 L / 3 D across 439 matches (mirrors excluded)
Winrate: 51.83%
The deck sits just above the 50% breakeven line, making it a solidly playable but not dominant presence in the Modern metagame for this window.
MATCHUP MATRIX (Blue Belcher perspective, mirrors excluded)
Favorable matchups:
Even/contested matchups:
Unfavorable matchups:
The clearest takeaway is that Blue Tameshi Belcher struggles most against the two highest-presence decks in the meta right now -- Prowess (10.87% share) and Broodscale (10.46% share) -- both posting sub-41% win rates against those matchups. Conversely, it excels against slower midrange and big mana strategies like Tron and Fight Rigging Eldrazi. The Boros Ponza number (30%) is worth watching but is based on only 10 matches.
Sources: Data from 51 Modern tournaments (55% MTGO, 45% Melee).