I'll need to look up several things simultaneously to handle this request. Let me start by getting the Living End archetype info and format meta changes for Modern.
I don't see an "ECL" set release in the meta changes. Let me check if ECL might refer to "Edge of Eternities" (EOE) or something else, and also search for the cards mentioned. Let me search for the cards and check what ECL could be.
ECL = "Lorwyn Eclipsed", released 2026-01-23. Now let me search the remaining cards and get the Living End winrate data post-ECL.
Note: "Harvester of Mystery" returned "Harvester of Misery" - that's the correct card for Living End. Now I have all card IDs. Let me note that user asked for "Harvester of Mystery" but in Living End context this is "Harvester of Misery." Now let me run the win% queries by copy count (0-4) for all cards in both main and sideboard. I'll do this as a batch of database queries post-ECL (2026-01-23 to 2026-04-20).
I have all 170 entries. Now let me process this data in a single aggregation query to compute win% by copy count for each card and board combination.
Now let me get the sources for this period.
Here is the full breakdown for Living End post-Lorwyn Eclipsed (ECL, 2026-01-23), across 149 entries with recorded match results. Note: "Harvester of Mystery" was matched to Harvester of Misery, the correct card in this archetype. Copies not observed in the data are omitted. Win% excludes draws.
FORMIDABLE SPEAKER (ECL new card)
MAIN: 0 copies: 52.6% (62 entries) | 1: 37.8% (10) | 2: 51.2% (59) | 3: 56.5% (15) | 4: 27.3% (3)
SIDE: All 149 entries play 0 SB copies (51.2%)
CURATOR OF MYSTERIES
MAIN: 0: 42.6% (29) | 1: 53.9% (18) | 2: 53.5% (36) | 3: 48.3% (7) | 4: 53.1% (59)
SIDE: 0 copies only (51.2%)
STREET WRAITH
MAIN: 0: 27.3% (3) | 1: 40.0% (4) | 2: 56.9% (42) | 3: 45.3% (19) | 4: 50.6% (81)
SIDE: 0 copies only (51.2%)
DISCIPLE OF FREYALISE
MAIN: 0: 50.8% (116) | 1: 52.3% (33)
SIDE: 0 copies only (51.2%)
COLOSSAL SKYTURTLE
MAIN: 0: 46.1% (51) | 1: 52.0% (41) | 2: 54.4% (57)
SIDE: 0 copies only (149)
DECEIT (ECL new card)
MAIN: 0: 53.0% (78) | 1: 52.5% (30) | 2: 49.2% (20) | 3: 40.6% (10) | 4: 43.8% (11)
SIDE: 0: 51.3% (146) | 1: 0.0% (1) | 2: 54.5% (2)
GENEROUS ENT
MAIN: 0: 75.0% (1, tiny sample) | 2: 37.8% (11) | 3: 47.4% (12) | 4: 52.6% (125)
SIDE: 0 copies only (51.2%)
HARVESTER OF MISERY
MAIN: 0: 51.3% (144) | 1: 50.0% (5)
SIDE: 0: 51.2% (97) | 1: 52.8% (30) | 2: 48.1% (20) | 3: 54.5% (2)
SINK INTO STUPOR
MAIN: 0: 37.9% (9) | 1: 48.8% (48) | 2: 53.4% (92)
SIDE: 0: 51.0% (148) | 1: 71.4% (1, tiny sample)
COMMANDEER
MAIN: 0: 49.7% (94) | 1: 53.6% (55)
SIDE: 0: 51.7% (106) | 1: 51.4% (37) | 2: 41.7% (6)
DISMEMBER
MAIN: 0 copies only across all 149 entries (51.2%)
SIDE: 0: 50.0% (83) | 1: 65.0% (3, tiny) | 2: 52.8% (33) | 3: 50.5% (30)
FORCE OF VIGOR
MAIN: 0 copies only (51.2%)
SIDE: 0: 52.3% (61) | 1: 47.2% (18) | 2: 52.3% (67) | 3: 35.7% (3)
HALO FORAGER
MAIN: 0: 53.4% (63) | 1: 49.6% (83) | 2: 44.4% (3)
SIDE: 0 copies only (51.2%)
A few standout data points worth flagging. On the mainboard, Street Wraith at 2 copies posts a notably strong 56.9% across 42 entries, while 4x is only 50.6% — suggesting some builds are trimming it in favor of Formidable Speaker packages. Deceit shows a clear negative correlation with copy count: 0 copies runs at 53.0%, falling to 43.8% at 4 copies, which aligns with ECL builds still settling — high Deceit counts appear in less optimized lists. Colossal Skyturtle shows a clean positive trend (0: 46.1%, 2: 54.4%), supporting its role as a high-value 2-of. Formidable Speaker's 3-copy slot is the sweet spot at 56.5%, though only 15 entries. On the sideboard, Dismember at 2 copies (52.8%, 33 entries) is the most reliable slot, and Force of Vigor at 2 copies (52.3%, 67 entries) is clearly the dominant configuration. Note that Disciple of Freyalise and several others appear exclusively in the mainboard with very limited copy spread, reflecting their role as 1-of flex slots.
Sources: Data from 117 Modern tournaments (post-ECL 2026-01-23), 149 Living End entries with match results. 83.8% MTGO, 16.2% Melee.
https://www.mtgo.com/decklist/modern-challenge-64-2026-04-1812839688
https://www.mtgo.com/decklist/modern-challenge-32-2026-04-1812839681
https://www.mtgo.com/decklist/modern-challenge-64-2026-04-1712839672