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
Patch history
- 1.0
Fixed Chaos Swords and Chaos Shields pop-ups.
Lines from the official Steam patch notes since Patch #18 that name this card.
Data: 9 Kings 1.0 card table on the official wiki, imported 2026-11-13.