Library of Leng

Library of Leng card image

Library of Leng: Artifact, Fifth Edition. You have no maximum hand size. MTG card printings, market prices, rulings, and format legality on Mana Grove.

Mana cost
{1}
Mana value
1
Type
Artifact
Colour identity
Colourless
Rarity
Uncommon
Set
Fifth Edition (5ED)
Released
1997-03-24
Collector number
387
Artist
Daniel Gelon
Commander rank
3,035 (by how often it appears in Commander decks)

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About Library of Leng

Library of Leng is a Magic: The Gathering card, an uncommon colourless artifact from Fifth Edition (5ED), a core set released in March 1997. It is collector number 387 in that set, with art by Daniel Gelon. It costs {1} (one generic mana) to cast, for a mana value of 1. It has no colour identity. It is legal in Legacy, Vintage, Pauper, Premodern, Old School, Commander, Duel Commander, Oathbreaker, Pauper Commander and PreDH. It has been printed in 14 sets, from Limited Edition Alpha (1993) to Special Guests (2023). The latest aggregated market price for this printing is $2.83 (normal finish, as of 2026-11-12).

Card text

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.

Market price

Latest aggregated market price for the normal finish of this printing: $2.83 (as of 2026-11-12).

The figure covers this printing only; other printings carry their own price on their own page.

Format legality

Legality of Library of Leng by format. Formats in which it is not legal are not listed.

LegacyLegal
VintageLegal
PauperLegal
PremodernLegal
Old SchoolLegal
CommanderLegal
Duel CommanderLegal
OathbreakerLegal
Pauper CommanderLegal
PreDHLegal

Other printings of Library of Leng

Library of Leng has been printed in 14 sets. The 12 most recent other printings are listed here, newest first, with the rarity and release year of each.

PrintingRarityYear
Special Guests (SPG) #158Mythic2026
30th Anniversary Edition (30A) #254Uncommon2022
30th Anniversary Edition (30A) #551Uncommon2022
Masters Edition IV (ME4) #211Common2011
Fourth Edition Foreign Black Border (4BB) #333Uncommon1995
Fourth Edition (4ED) #333Uncommon1995
Summer Magic / Edgar (SUM) #261Uncommon1994
Revised Edition (3ED) #261Uncommon1994
Foreign Black Border (FBB) #261Uncommon1994
Collectors' Edition (CED) #258Uncommon1993
Intl. Collectors' Edition (CEI) #258Uncommon1993
Unlimited Edition (2ED) #258Uncommon1993

Official rulings

The 8 most recent official rulings for Library of Leng, newest first.

  • 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.
  • You can look at a randomly discarded card before deciding where it goes.
  • The ability replaces the normal discard action with a discard action that puts the card on the library instead of the graveyard.
  • The discard triggers anything else that triggers on discards.
  • 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.
  • 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.
  • 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.
  • This effect has no effect on the cards being put into the graveyard from a library, because they are not "discarded".

Similar cards

Other artifact cards with no colour identity, ranked by how often they appear in Commander decks.

In these card lists

These card lists include Library of Leng.

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