Library
Every year, has a 50% chance of duplicating an enchantment of one adjacent troop.
- Type
- Building
- Owner
- King of Spells
- Unlock the king
- Use 9 spells
How players use it
- King of Spells Front line: one tank with Steel Coat stacks. A Library next to it can copy an enchantment each year, and Re-enchant doubles all enchantments. Re-roll the attacker into the King of Nothing early to loot Steel Coats. Matsuri was still overrun late with over 100 Steel Coats, so take Rebirth or HP decrees at the late councils.
- 1.0 achievements with a trap The Devs Rigged My RNG: a Library fails three times in a row; its chance is 50% per year.
How to get it
- In the King of Spells's 9-card deck: a run as this king can start with it, and losing a battle offers cards from your own deck.
- Loot after beating the King of Spells in battle when that king is one of your enemies.
- Merchant: Jack of Structures (buildings, towers and bases).
- Joker mode: pick it for a custom deck.
Decrees, perks and cards that name it
| Entry | Effect |
|---|---|
| Scholar King of Spells perk | Raises the Library success rate. |
Rest of the King of Spells deck
Patch history
- Patch #23
Library can now trigger its effect again after 3 successful rolls.
- Patch #31
Fixed a broken interaction between Surge and Library.
Lines from the official Steam patch notes since Patch #18 that name this card.
Achievements
- Full-service: Have a Blacksmith, a Library, a Beacon, and a Forest buffing the same troop plot.
Data: 9 Kings 1.0 card table on the official wiki, imported 2026-11-13.