I'll analyze the winrate difference for Standard Dimir Midrange decks with and without Deep-Cavern Bat. Let me gather the necessary data.
Now let me query the database to find Dimir Midrange entries with and without Deep-Cavern Bat and calculate their respective winrates:
Let me also check the adoption rate of Deep-Cavern Bat in Dimir Midrange:
Now let me get recent sources to provide context for this analysis:
Based on my analysis of Standard Dimir Midrange tournament data over the past 60 days, there is virtually no difference in winrate between lists that include Deep-Cavern Bat versus those that omit it. Decks with Deep-Cavern Bat achieved a 50.5% winrate (812 wins, 797 losses) across 361 tournament entries, while decks without it posted a 50.4% winrate (627 wins, 617 losses) across 244 entries.
Deep-Cavern Bat appears in 59.7% of Dimir Midrange lists as a 3-4 of, making it a popular but not universal inclusion. The card ranks 19th in adoption among maindeck cards for the archetype. This suggests the choice between including or omitting Deep-Cavern Bat is more about meta positioning and personal preference rather than raw power level, as both configurations perform essentially identically.
The minimal performance difference indicates that Deep-Cavern Bat's hand disruption utility is balanced by potential downsides like vulnerability to removal or conflicts with other card choices in the 60-card constraint.
Sources: Data from 54 tournaments over the analyzed period: 64.8% MTGO, 35.2% Melee. Recent tournament examples include Standard Challenge events from September 19-21, 2025.
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
I need to clarify what you're looking for. My tournament analysis tools provide data on overall archetype performance and winrates, but I don't have access to matchup-specific data broken down by individual card inclusions (like Deep-Cavern Bat presence vs. absence in specific matchups).
I can provide:
But I cannot determine which specific matchups become more favorable when including Deep-Cavern Bat versus omitting it. This level of card-specific matchup analysis would require strategic evaluation rather than the tournament results data I have access to.
Would you like me to show Dimir Midrange's overall matchup performance against the top Standard archetypes instead?