Antewise

Book Repair Knife — Necrobinder Relic in Slay the Spire 2

Updated 17 Oct 2026 Source Slay the Spire 2 relic data (spire-codex.com API), 296 relics retrieved 17 October 2026 By
Data status: The facts on this page were checked against the source named above. Game values can still shift with a patch, so re-check anything that looks off.
Book Repair Knife relic art
Book Repair Knife

Whenever a non-Minion enemy dies to Doom, heal 3 HP.

PoolNecrobinder
RarityUncommon Relic
TriggerWhenever a non-Minion enemy dies to Doom
Price225 Gold at base, 191–259 across shop price modifiers

What it does

Whenever a non-Minion enemy dies to Doom, heal 3 HP.

Relic data comes from the community-built Slay the Spire 2 compendium API and tracks the early-access build. Treat exact numbers as community-verified; the game is still in early access and values shift between patches.

Other Necrobinder relics

  • Bound Phylactery — At the start of your turn, Summon 1.
  • Phylactery Unbound — At the start of each combat, Summon 5. At the start of your turn, Summon 2.
  • Bone Flute — Whenever Osty attacks, gain 2 Block.
  • Funerary Mask — At the start of each combat, add 3 Souls into your Draw Pile.
  • Big Hat — At the start of each combat, add 2 random Ethereal cards into your Hand.
  • Bookmark — At the end of each turn, lower the cost of a random Retained card by 1 until played.
  • Ivory Tile — Whenever you play a card that costs 3 Energy or more, gain 1 Energy.
  • Undying Sigil — Enemies with at least as much Doom as HP deal 50% less damage.

Other Uncommon Relic relics

Where to go next

All 296 relics — the full filterable list. Rarity system explains how often each tier appears.

Card database covers the cards that pair with this relic. Characters shows which run can find it.

Frequently asked questions

What does Book Repair Knife do in Slay the Spire 2?

Whenever a non-Minion enemy dies to Doom, heal 3 HP.

Which pool is Book Repair Knife in?

It belongs to the Necrobinder pool and is Uncommon Relic.

How much does Book Repair Knife cost?

225 Gold at base, 191–259 across shop price modifiers

When does Book Repair Knife trigger?

Whenever a non-Minion enemy dies to Doom.

More Slay the Spire 2 guides

Sources

Figures and item data on this site are read from the game’s own reference wiki before publishing. Where a value could not be confirmed there, the page says so instead of filling the gap.