Library of Leng card art

Library of Leng

Artifact MV 1

Tracked across real Commander games played through TurnZero HQ.

Buy on TCGplayer Track your own decks
Jump to section ▾
What it doesCombosRulingsIn the 99Every version

What it does

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.

Combos with Library of Leng

Lines this card is part of — what it needs alongside it, and what the two of them do. An infinite result is the one that moves a deck's bracket.

  • Wan Shi Tong, All-Knowing Sage of the Falls Infinite
    • Infinite draw triggers
    • Infinite looting
    • Near-infinite creature tokens
    • Infinite self-discard triggers
    • Near-infinite creature ETB
    See the steps on Commander Spellbook →
  • Mary Read and Anne Bonny Quicksmith Genius Infinite
    • Infinite artifact ETB
    • Infinite artifact tokens
    • Infinite draw triggers
    • Infinite self-discard triggers
    • Infinite tapped Treasure tokens
    See the steps on Commander Spellbook →
  • Surly Badgersaur Skyswimmer Koi Infinite
    • Infinite artifact ETB
    • Infinite artifact tokens
    • Infinite draw triggers
    • Infinite self-discard triggers
    • Infinite tapped Treasure tokens
    See the steps on Commander Spellbook →
  • Surly Badgersaur Rook Turret Infinite
    • Infinite artifact ETB
    • Infinite artifact tokens
    • Infinite draw triggers
    • Infinite self-discard triggers
    • Infinite tapped Treasure tokens
    See the steps on Commander Spellbook →
  • Mary Read and Anne Bonny Transplant Theorist Infinite
    • Infinite artifact ETB
    • Infinite artifact tokens
    • Infinite self-discard triggers
    • Infinite draw triggers
    • Infinite tapped Treasure tokens
    See the steps on Commander Spellbook →
  • Mary Read and Anne Bonny Skyswimmer Koi Infinite
    • Infinite artifact ETB
    • Infinite artifact tokens
    • Infinite self-discard triggers
    • Infinite draw triggers
    • Infinite tapped Treasure tokens
    See the steps on Commander Spellbook →
  • Mary Read and Anne Bonny Rook Turret Infinite
    • Infinite artifact ETB
    • Infinite artifact tokens
    • Infinite draw triggers
    • Infinite self-discard triggers
    • Infinite tapped Treasure tokens
    See the steps on Commander Spellbook →
  • Wan Shi Tong, All-Knowing Intruder Alarm Kitsa, Otterball Elite Infinite
    • Infinite creature ETB
    • Infinite creature tokens
    • Infinite self-discard triggers
    • Infinite draw triggers
    • Infinite mana creatures you control can produce
    • Infinite untap of creatures
    See the steps on Commander Spellbook →

Showing the 8 shortest and most explosive. This card appears in more than these — follow any of them through to Commander Spellbook to browse the rest.

Combo data from Commander Spellbook, the community-maintained database of Magic combos. Mirrored nightly.

Rulings

9 official rulings, in the order Wizards published them.

  • 2004-10-04

    You can look at a randomly discarded card before deciding where it goes.

  • 2004-10-04

    The ability replaces the normal discard action with a discard action that puts the card on the library instead of the graveyard.

  • 2004-10-04

    The discard triggers anything else that triggers on discards.

  • 2004-10-04

    The ability applies any time a spell or ability has you discard as part of its effect. It does not matter if you or your opponent control the spell or ability. The discard is forced because it is an effect.

  • 2004-10-04

    You can't use the Library of Leng ability to place a discarded card on top of your library when you discard a card as a cost, because costs aren't effects.

  • 2004-10-04

    If more than one card is discarded due to a single effect, the Library allows you to decide whether or not to use it on each of the cards. You get to decide the order the cards are placed on the library if more than one goes there.

  • 2004-10-04

    This effect has no effect on the cards being put into the graveyard from a library, because they are not "discarded".

  • 2004-10-04

    Since the card goes directly to the library, the card is not revealed unless the spell or ability requiring the discard specifically says it is.

  • 2009-10-01

    If multiple effects modify your hand size, apply them in timestamp order. For example, if you put Null Profusion (an enchantment that says your maximum hand size is two) onto the battlefield and then put Library of Leng onto the battlefield, you'll have no maximum hand size. However, if those permanents entered in the opposite order, your maximum hand size would be two.

Rulings are Wizards of the Coast's own, mirrored from Scryfall and refreshed nightly.

In the 99

Every deck whose current list includes Library of Leng, whatever its commander.

Decks running it 2
Games played 0
Win rate — Fewer than 5 completed games — not enough to publish a rate yet.
Confirmed on board 0 Games where a board photo caught it actually in play.

Most played under

Commander Decks Games Win rate
Pantlaza, Sun-Favored 1 0 —

Colors it shows up in

  • Naya 1 deck

Every version of Library of Leng

14 printings, newest first. Prices are the market figures Scryfall publishes, refreshed nightly — a printing with no figure shows a dash rather than a zero, because Scryfall genuinely publishes none for some of them.

Prices from Scryfall, which tracks the TCGplayer and Cardmarket markets. They move daily and are a guide rather than a quote. Search TCGplayer for Library of Leng — a name search across every version, for the printings TCGplayer publishes no direct link to.

Aggregated from Commander games tracked in TurnZero HQ. Every figure counts decks and games only — no individual deck list, player or playgroup is identified. Win rates are withheld below 5 completed games, where the sample is too small to mean anything.