Surge
Triggers the effect of target support building 9 times.
- Type
- Tome
- Owner
- Rainbow (no king)
- Added
- Patch #30
How players use it
- Rainbow cards by job Support multipliers: Warehouse repeats adjacent building effects; Surge triggers a support building 9 times at once (27 stacks from a level-3 Blacksmith, 36 with Overwork); Reflector (1.0) receives every tome effect applied to an adjacent plot.
How to get it
- Loot after beating the Jack of Rainbows (twice per run).
- Merchants have a chance to stock one; the Lucky perk and Rare Goods decree raise it.
- Gacha at max level, Diffract and the Refraction decree give random Rainbow cards.
Other Jack of Rainbows tomes
Patch history
- Patch #30
Fixed pop-up delays when using Surge on high level buildings.
- Patch #31
Fixed a broken interaction between Surge and Library.
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.