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Library of Leng

Artifact

You have no maximum hand size.
If an effect causes you to discard a card, discard it, but you may put it on top of your library instead of into your graveyard.

CMC
1
Mana cost
{1}
Color identity
C
Rarity
common
Set
Masters Edition IV
Price
—
EDHREC rank
#3260
Buy on TCGplayer
Library of Leng card art
Library of Leng removes your hand size limit and lets you put discarded cards on top of your library instead of into the graveyard — for one colorless mana, that's an absurd amount of insurance on any discard-heavy strategy. Commanders like Lorehold, the Historian and Mary Read and Anne Bonny turn forced discard from a cost into a selection engine the moment Library of Leng hits the table.

Best Commanders

Commanders with the highest synergy

01
Lorehold, the Historian

Lorehold, the Historian

77.8% of decks · synergy 0.76

Lorehold, the Historian's ability to loot repeatedly makes Library of Leng a straight-up draw filter — anything you'd discard goes back on top rather than disappearing, so every activation digs for exactly what you need without losing resources.

02
Queen Kayla bin-Kroog

Queen Kayla bin-Kroog

37.4% of decks · synergy 0.35

Queen Kayla bin-Kroog discards as part of her core engine, and Library of Leng converts each of those discards into a topdeck rather than a permanent loss, letting you sequence through your hand without falling behind on cards.

03
Zurzoth, Chaos Rider

Zurzoth, Chaos Rider

27.0% of decks · synergy 0.26

Zurzoth, Chaos Rider forces both players to discard, and Library of Leng lets you selectively return anything you don't want to lose while your opponents still pay the full cost — the symmetry breaks hard in your favor.

04
Rielle, the Everwise

Rielle, the Everwise

25.4% of decks · synergy 0.24

Rielle, the Everwise rewards each discard with a drawn card, and Library of Leng means you can put a card back on top before drawing, effectively letting you reorder your draws and never lose a key piece to the discard clause.

05
Flubs, the Fool

Flubs, the Fool

18.1% of decks · synergy 0.16

Flubs, the Fool's looting-style triggers generate a steady stream of discards, and Library of Leng turns that stream into pure selection — anything you'd rather keep goes back on top instead of into the bin.

Format Analysis

Where it lives, where it can’t

FormatVerdict
commander legal
legacy legal
modern not legal
pioneer not legal
standard not legal
vintage legal
pauper legal
oathbreaker legal

Library of Leng is legal in Commander, Legacy, Vintage, Pauper, and Oathbreaker, but Commander is the format where it actually earns a slot. In Legacy and Vintage the no-maximum-hand-size clause is nearly irrelevant and the discard redirection competes with far more powerful card-advantage engines, so Library of Leng rarely sees competitive play there. Pauper is where it resurfaces as a fringe option in slower builds that accumulate cards and want to protect their hand against discard effects. In Commander, a format built around big-hand-size payoffs and commander abilities that loot or discard repeatedly, Library of Leng's combination of effects is genuinely unique at one mana — no other card at this price point does both jobs simultaneously.

Key Combos

Combo lines featuring this card

63 decks
Mary Read and Anne BonnyLibrary of LengQuicksmith Genius

Mary Read and Anne BonnyLibrary of LengQuicksmith Genius

Infinite draw triggers; Infinite self-discard triggers; Infinite tapped Treasure tokens

View on Commander Spellbook ↗

Price Context

Current price

unknown tier

Pricing data for Library of Leng isn't currently available through our sources, so check Scryfall or TCGPlayer for the most accurate number before buying. It has been reprinted, so copies are generally accessible — it's rarely a chase card, and budget shouldn't be a barrier to picking one up.

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Sources

Mentioned

← All cards

Updated . Data from Scryfall, EDHREC, and Commander Spellbook.