How players use it
- Spending Gold-cost cards. Over-invest spends 30 gold to raise every stat of a plot; Chaos Over-invest spends 999.
How to get it
- Loot after beating the Jack of Chaos, who joins your enemies from year 34 in Endless mode.
- Chaos Offering gives Chaos cards; the Black Market decree opens a Chaos shop.
Other Jack of Chaos tomes
Data: 9 Kings 1.0 card table on the official wiki, imported 2026-11-13.