Osmosis
All plots holding the same card as the target plot get +30% to all stats (Patch #29).
- Type
- Tome
- Owner
- Rainbow (no king)
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 #18
Osmosis (Tome): All plots of the same card as target plot get +10% to all stats.
- Patch #29
Osmosis now give +30% to all stats.
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.