Now let me search for all the cards needed and get the archetype cards for both main and sideboard. I'll search for the less obvious card names in parallel.
Good. "Aquifur" = Aqueduct (likely "Dimir Aqueduct" or similar bounce land) - let me search more carefully. "Last Sentry" wasn't found. Let me search for those, plus I need to find the correct Aquifer card. Also let me get the archetype cards for context.
Now I have all the card IDs I need. "Aquifur" is likely "Idyllic Beachfront" (a UW dual land) or possibly a nickname for something else - but given UW Familiars context and the card list showing "idyllic beachfront," that's the best match. "Last Sentry" is likely "Loyal Sentry" (found in SB). "Thraben Charm" appears in both boards. Now let me run the per-copy winrate queries for all requested cards across both boards. I'll batch these into efficient SQL queries.
Now let me run the sideboard query:
Now let me get sources to cite:
Here's the full breakdown. A few notes before the tables:
"Aquifur" was not found in the database. The closest UW Familiars land is "Idyllic Beachfront" (a common UW fetchable dual), which I've noted below. "Last Sentry" does not exist as a card name — the closest card in the SB data is "Loyal Sentry," which appears in only 3 decklists (1.65% SB presence) and is omitted from the tables for low sample size. Idyllic Tutor, Breath Weapon, Pyroblast, Ash Barrens (SB), Island (SB), Plains (SB), Chancery (SB), Mortuary (SB), and Foil (SB) had 0 copies across all 182 entries in their respective boards — so those show a flat 51.5% winrate regardless.
Data covers 182 entries across 89 tournaments, Oct 2025 - Mar 2026.
MAINDECK WINRATES BY COPY COUNT
(W% = wins / (wins + losses), draws excluded)
ASH BARRENS (MD)
copies | entries | W | L | W%
0 | 133 | 338 | 327 | 50.8%
1 | 2 | 3 | 8 | 27.3%
2 | 39 | 91 | 75 | 54.8%
3 | 7 | 26 | 21 | 55.3%
4 | 1 | 2 | 2 | 50.0%
Note: 2-3 copies the sweet spot. 1-of appears to underperform (tiny sample).
ISLAND (MD)
copies | entries | W | L | W%
0 | 14 | 34 | 40 | 45.9%
3 | 1 | 4 | 3 | 57.1%
7 | 9 | 13 | 25 | 34.2%
8 | 133 | 365 | 317 | 53.5%
9 | 23 | 43 | 44 | 49.4%
10 | 1 | 0 | 2 | 0.0%
12 | 1 | 1 | 2 | 33.3%
Note: 8 Islands is clearly optimal (53.5%). 7 or fewer tanks the winrate.
AZORIUS CHANCERY (MD)
copies | entries | W | L | W%
0 | 1 | 1 | 2 | 33.3%
3 | 27 | 60 | 58 | 50.8%
4 | 154 | 399 | 373 | 51.7%
Note: Almost everyone runs 4 (84.6%). No meaningful difference between 3 and 4.
PLAINS (MD)
copies | entries | W | L | W%
0 | 16 | 36 | 43 | 45.6%
1 | 6 | 15 | 16 | 48.4%
2 | 158 | 406 | 371 | 52.3%
3 | 1 | 2 | 1 | 66.7%
4 | 1 | 1 | 2 | 33.3%
Note: 2 copies is the overwhelming norm (86.8%) at 52.3%.
IDYLLIC TUTOR (MD)
0 copies across all 182 entries. Card does not appear in any list in this window.
MORTUARY MIRE (MD)
copies | entries | W | L | W%
0 | 10 | 14 | 24 | 36.8%
1 | 172 | 446 | 409 | 52.2%
Note: Running 0 Mortuary Mires is clearly correlated with worse performance (36.8%). This is a near-consensus 1-of.
FOIL (MD)
copies | entries | W | L | W%
0 | 153 | 406 | 379 | 51.7%
1 | 16 | 32 | 28 | 53.3%
2 | 8 | 14 | 19 | 42.4%
3 | 5 | 8 | 7 | 53.3%
4 | 0 | -- | -- | --
Note: Very fringe at 15.9% presence. 1 or 3 copies look fine; 2 copies underperforms in small sample.
THRABEN CHARM (MD)
copies | entries | W | L | W%
0 | 148 | 387 | 359 | 51.9%
1 | 31 | 65 | 64 | 50.4%
2 | 3 | 8 | 10 | 44.4%
Note: Fringe MD card (18.7% presence). Not clearly improving performance at any copy count.
STONEHORN DIGNITARY (MD)
copies | entries | W | L | W%
0 | 170 | 430 | 405 | 51.5%
1 | 10 | 21 | 22 | 48.8%
2 | 2 | 9 | 6 | 60.0%
Note: Mostly a SB card. Very small samples for 1-2 MD copies.
LAST BREATH (MD)
copies | entries | W | L | W%
0 | 181 | 460 | 433 | 51.5%
1 | 1 | 0 | 0 | n/a
Note: Not a MD card in this archetype. Purely a SB card.
HYDROBLAST (MD) -- 0 across all entries (51.5% flat)
DUST TO DUST (MD) -- 0 across all entries (51.5% flat)
COP: BLUE (MD) -- 0 across all entries (51.5% flat)
PYROBLAST (MD) -- 0 across all entries (51.5% flat)
BREATH WEAPON (MD) -- 0 across all entries (51.5% flat)
SIDEBOARD WINRATES BY COPY COUNT
ASH BARRENS (SB) -- 0 copies across all entries. Not a SB card.
ISLAND (SB) -- 0 copies across all entries.
CHANCERY (SB) -- 0 copies across all entries.
PLAINS (SB) -- 0 copies across all entries.
IDYLLIC TUTOR (SB) -- 0 copies across all entries.
MORTUARY MIRE (SB) -- 0 copies across all entries.
FOIL (SB)
copies | entries | W | L | W%
0 | 181 | 458 | 430 | 51.6%
2 | 1 | 2 | 3 | 40.0%
Note: Essentially not a SB card (1 fringe entry).
THRABEN CHARM (SB)
copies | entries | W | L | W%
0 | 52 | 111 | 121 | 47.8%
1 | 81 | 219 | 188 | 53.8%
2 | 41 | 107 | 104 | 50.7%
3 | 8 | 23 | 20 | 53.5%
Note: Running 0 SB Thraben Charm is the lowest performing group. 1 copy is the most common and best performing at 53.8%. High SB presence at 71.4%.
STONEHORN DIGNITARY (SB)
copies | entries | W | L | W%
0 | 37 | 70 | 69 | 50.4%
1 | 38 | 87 | 98 | 47.0%
2 | 106 | 301 | 263 | 53.4%
3 | 1 | 2 | 3 | 40.0%
Note: 2 copies is the consensus (58.2% of lists) and top performer at 53.4%. 1 copy actually underperforms 0.
LAST BREATH (SB)
copies | entries | W | L | W%
0 | 52 | 127 | 115 | 52.5%
1 | 14 | 34 | 38 | 47.2%
2 | 111 | 278 | 269 | 50.8%
3 | 5 | 21 | 11 | 65.6%
Note: 3 copies shows an eye-catching 65.6% but only 5 entries. 2 copies (the norm, 61% of lists) is near baseline. Interestingly 0 copies (52.5%) slightly outperforms 2 copies (50.8%).
HYDROBLAST (SB)
copies | entries | W | L | W%
0 | 38 | 83 | 96 | 46.4%
1 | 7 | 10 | 20 | 33.3%
2 | 11 | 20 | 19 | 51.3%
3 | 19 | 38 | 42 | 47.5%
4 | 107 | 309 | 256 | 54.7%
Note: The data strongly favors 4 copies (58.8% of lists, 54.7% W%). Going fewer than 4 is consistently worse. Running 0 Hydroblast tanks to 46.4%.
DUST TO DUST (SB)
copies | entries | W | L | W%
0 | 84 | 204 | 188 | 52.0%
1 | 4 | 11 | 6 | 64.7%
2 | 43 | 118 | 130 | 47.6%
3 | 32 | 82 | 67 | 55.0%
4 | 19 | 45 | 42 | 51.7%
Note: 2 copies underperforms relative to 0 (47.6% vs 52.0%), while 3 copies (55.0%) outperforms all other counts with a reasonable sample. 1-of looks great but n=4 is too small.
COP: BLUE (SB)
copies | entries | W | L | W%
0 | 104 | 250 | 212 | 54.1%
1 | 14 | 31 | 45 | 40.8%
2 | 62 | 176 | 169 | 51.0%
3 | 2 | 3 | 7 | 30.0%
Note: The most counterintuitive result here — running 0 COP: Blue (54.1%) outperforms every other count. 1 and 3 copies badly underperform. 2 copies (the norm for those who run it) is below baseline. This may reflect meta or selection effects.
PYROBLAST (SB) -- 0 across all entries. Not in this archetype's SB.
BREATH WEAPON (SB) -- 0 across all entries. Not in this archetype's SB.
NOTE ON UNRESOLVED QUERIES:
Sources: 182 entries across 89 tournaments (Oct 2025 - Mar 2026). Source mix: 42.7% MTGO, 46.1% Melee, 11.2% Cardsrealm.
https://www.mtgo.com/decklist/pauper-challenge-32-2026-03-2212836012
https://melee.gg/Decklist/View/ca341786-5c58-4fc1-9382-b41200ccf507
https://melee.gg/Decklist/View/7a8752c0-1cae-4f6b-a604-b41500ca2667