Mono Blue Librarians 
Mono Blue Librarians Penny Dreadful decklist played by deatheater900 at League October 2025 (31 Oct 2025).
- Player
- deatheater900
- Finish
- 1-0
- Event
- League October 2025,
- Archetype
- Mono Blue Librarians
- Format
- Penny Dreadful
- MTGO
- Paper
- Source
- Penny Dreadful
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Main deck (60)
Creatures (17)
- 4 Academy Loremaster
- 3 Horned Loch-Whale // Lagoon Breach
- 4 Malcolm, Alluring Scoundrel
- 4 Stoic Sphinx
- 2 Vendilion Clique
Instants (17)
- 4 Archmage's Charm
- 4 Cryptic Command
- 1 Cyclonic Rift
- 1 Dig Through Time
- 1 Negate
- 3 Repeal
- 2 Spell Pierce
- 1 Thassa's Intervention
Artifacts (3)
Lands (23)
- 23 Island
Sideboard (15)
Compared with the average Mono Blue Librarians list
Average of 26 decks in the 7 days up to Oct. 31, 2025, the day of this tournament.
Main deck
More than usual
- +3 Stoic Sphinx (4 vs 0.9)
- +3 Repeal (3 vs 0.3)
- +2 Vendilion Clique (2 vs 0.3)
- +2 Malcolm, Alluring Scoundrel (4 vs 2.3)
- +2 Spell Pierce (2 vs 0.3)
- +1 Horned Loch-Whale (3 vs 1.5)
- +1 Cryptic Command (4 vs 2.8)
- +1 Vedalken Shackles (3 vs 1.9)
Fewer than usual
- -3 Out of Air (0 vs 2.8)
- -2 Deduce (0 vs 2.2)
- -2 Shark Typhoon (0 vs 1.6)
- -1 Forbid (0 vs 1.4)
- -1 Kami of the Crescent Moon (0 vs 1.2)
- -1 Leyline of Anticipation (0 vs 1.2)
- -1 Mystic Reflection (0 vs 1.2)
- -1 Master of Waves (0 vs 1.2)
Sideboard
More than usual
- +3 Engulf the Shore (3 vs 0.2)
- +1 Disdainful Stroke (2 vs 0.5)
- +1 Spell Pierce (2 vs 0.9)
Fewer than usual
- -1 Aetherspouts (0 vs 1.5)
- -1 Malcolm, Alluring Scoundrel (0 vs 1.4)
- -1 Disallow (0 vs 1.2)
- -1 Negate (1 vs 2.0)
Most unusual list in this period: glendaloc in League October 2025 (25 cards away from the average)