I'll analyze the Standard Dimir Midrange decks that include Duelist of the Mind. Let me gather the data for you.
Now let me query the database to find the specific winrate of Dimir Midrange decks that include Duelist of the Mind in Standard over the recent period.
Let me check if Duelist of the Mind appears in any Standard decks at all, and also verify the correct date range for recent data.
Let me get the specific performance data for these entries that played Duelist of the Mind:
Based on the tournament data analysis, I found very limited usage of Duelist of the Mind in Standard tournaments, and notably, none of the entries were classified as Dimir Midrange.
The data shows only 4 tournament entries across all Standard archetypes that included Duelist of the Mind in their maindeck since late June 2025. These were spread across different archetypes: Izzet Prowess (25.0% winrate, 1-3 record), Esper Oculus (50.0% winrate, 2-2 record), and one Conflict archetype deck (55.6% winrate, 5-4 record). One entry had an incomplete record.
Specifically for Dimir Midrange, there were zero tournament entries that included Duelist of the Mind in the analyzed timeframe. This suggests the card is not seeing competitive adoption in Dimir Midrange lists, despite the archetype having a solid 51.4% overall winrate across 1,147 recent tournament entries.
Sources: Data from 138 Standard tournaments from June-September 2025: 70.3% MTGO, 29.7% Melee. Recent tournaments include:
https://www.mtgo.com/decklist/standard-challenge-32-2025-09-2112815156
https://www.mtgo.com/decklist/standard-challenge-32-2025-09-1912815123
https://www.mtgo.com/decklist/standard-challenge-32-2025-09-1912815111