Spirit Realm is a per-character power layer. Each character has their own six-tier grid, you fill it with spirits you've fused up, and the spirits you've slotted across your whole roster also trigger account-wide set bonuses.
Grid tiers
Pushing a character's grid up the tiers unlocks more slots: extra base slots first, then holes (random-stat sockets), and finally an enhance slot at tier 6.
| Tier | Base slots | Holes | Enhance |
|---|---|---|---|
| 1 | 1 | 0 | 0 |
| 2 | 2 | 0 | 0 |
| 3 | 2 | 1 | 0 |
| 4 | 2 | 2 | 0 |
| 5 | 2 | 3 | 0 |
| 6 | 2 | 3 | 1 |
Spirit qualities and fusion
Spirits come in five quality tiers. To push a spirit's quality up, you fuse two of the same quality into one of the next quality tier. Fusion is the main reason you keep low-quality spirits — feeding two Q1 into a Q2, two Q2 into a Q3, and so on, is how the rare ones come into being.
What a "hole" is
A hole is a socket whose stat is rolled from a pool when you slot it. The pool covers the offensive and defensive stats you see everywhere else in the game. Tier 5 is the first tier with three holes; Tier 6 adds the single enhance slot on top.
Account-wide suit bonuses
On top of the per-character grid, the game tracks how many spirits of each quality you've got equipped across your whole roster. Hit the thresholds — 6, 12, and 18 pieces of the same quality — and the whole account unlocks a flat stat bonus at each step. Higher-quality thresholds give bigger bonuses, so pushing both grid tiers and total quality-piece count is the play.
Where the materials come from
Spirit Realm materials drop primarily from Double Clash. The higher the Double Clash difficulty you can SSS, the faster you push your grid. Spirit Realm and Double Clash unlock together at Account Lv.13 for that reason — they're a paired progression loop.
Spirit Realm vs Collectible
These two systems sit next to each other in the menu and they are not the same. Spirit Realm is the grid-and-fusion system on this page. Collectible is a separate activatable-buff system that grants account-wide bonuses you toggle on. You can be progressing both in parallel.