Let me start by finding the Pro Tour Marvel Super Heroes date and resolving the Belcher archetypes simultaneously.
The meta changes don't show a Pro Tour Marvel Super Heroes event directly. Let me search for it in the database and also try to find the Tameshi Belcher archetype more broadly.
Pro Tour Marvel Super Heroes started on 2026-07-17. Now let me find all archetypes with "Belcher" in their name and pull the meta report, then build the matchup matrix.
I can see the Belcher archetypes in the DB. The user asked specifically about "Belcher" and "Mono-Blue Tameshi Belcher." "Mono Blue Belcher" is the closest match. Now let me check if "Mono-Blue Tameshi Belcher" is an alias or if we need to look at the top meta archetypes and build matchup data. Let me query matchup data across all Belcher archetypes vs the top meta decks simultaneously.
No entries post-PT. Let me check across all Belcher archetypes in a wider window and also check the overall Belcher presence in the DB.
Blue Belcher is clearly the dominant Belcher archetype with 1,884 entries. "Mono-Blue Tameshi Belcher" almost certainly maps to this. Let me add the alias and then pull the full matchup matrix for Blue Belcher since the PT start date.
The match results are recorded but wins/losses/draws are all zero — this looks like a data recording issue (matches present but results not populated). Let me check the raw match data and also look at the entry-level records directly.
The match results use 'WIN'/'LOSS' strings (not 'W'/'L'). Let me fix the query with the correct result values.
Now let me get the overall Blue Belcher winrate and sources for the period.
Here's the full metagame matrix for Blue Belcher (a.k.a. Mono-Blue Tameshi Belcher) since Pro Tour Marvel Super Heroes (2026-07-17):
Since Pro Tour Marvel Super Heroes (Jul 17 – Jul 28, 2026)
Overall: 28W–31L (47.5% WR, excl. mirrors) | 20 entries
⚠️ Note: "Belcher" (generic) had only 1 all-time entry and no post-PT data. Blue Belcher is the dominant Tameshi Belcher variant (1,884 all-time entries) — aliased as "Mono-Blue Tameshi Belcher" going forward.
| Opponent | W | L | WR% | Matches |
|---|---|---|---|---|
| 🟢 Fight Rigging Eldrazi | 6 | 0 | 100% | 6 |
| 🟢 Affinity | 3 | 0 | 100% | 3 |
| 🟡 Neobrand | 3 | 1 | 75% | 4 |
| 🟡 Boros Energy | 3 | 4 | 42.9% | 7 |
| 🔴 Broodscale | 2 | 4 | 33.3% | 6 |
| 🔴 Living End | 1 | 2 | 33.3% | 3 |
| 🔴 Domain Zoo | 1 | 2 | 33.3% | 3 |
| 🔴 Prowess | 1 | 3 | 25% | 4 |
| 🔴 Ruby Storm | 0 | 3 | 0% | 3 |
| 🔴 Azorius Blink | 0 | 3 | 0% | 3 |
(Only matchups with ≥3 matches shown — small samples, treat with caution)
Key takeaways:
Sources — 14 tournaments (78.6% MTGO, 21.4% Melee):