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 50 decks in the 90 days up to Oct. 31, 2025, the day of this tournament.
Main deck
More than usual
- +2 Cryptic Command (4 vs 1.7)
- +2 Archmage's Charm (4 vs 1.8)
- +2 Repeal (3 vs 1.0)
- +2 Stoic Sphinx (4 vs 2.1)
- +2 Vendilion Clique (2 vs 0.2)
- +2 Spell Pierce (2 vs 0.2)
- +1 Malcolm, Alluring Scoundrel (4 vs 2.6)
Fewer than usual
- -2 Out of Air (0 vs 1.6)
- -2 Faerie Vandal (0 vs 1.5)
- -2 Memory Lapse (0 vs 1.5)
- -1 Mana Leak (0 vs 1.3)
- -1 Deduce (0 vs 1.3)
- -1 Disallow (0 vs 1.2)
- -1 Shark Typhoon (0 vs 1.0)
Sideboard
More than usual
- +3 Engulf the Shore (3 vs 0.2)
- +2 Disdainful Stroke (2 vs 0.4)
- +1 Spell Pierce (2 vs 0.5)
- +1 Ratchet Bomb (2 vs 0.8)
- +1 Pithing Needle (2 vs 1.0)
Fewer than usual
- -2 Aetherspouts (0 vs 1.9)
- -2 Flashfreeze (0 vs 1.8)
- -2 Aegis Turtle (0 vs 1.5)
- -1 Tidebinder Mage (0 vs 1.4)
Most unusual list in this period: glendaloc in League October 2025 (28 cards away from the average)