| Operation | Story |
| BI-3 Inscrutable |
Break the Ice: The Grand Ceremony Previous BI-2 Next BI-ST-2
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| Unlike the single-minded clawbeasts, humans will weigh the options most likely to give them their desired outcomes. <Icy Surface> Applies "Cold" to units on top of it, and increases the distance Frozen enemies on it are shifted. <Snowfall> Periodically applies Cold to all units. | |
| Recommended level | Elite 1 Level 1 | ||
|---|---|---|---|
| Sanity | Drill Plan | EXP | LMD |
| 9 | 1 | 90 (108) | 90 (108) |
| Unit Limit | Initial DP | Life Points | Enemies |
| 8 | 9 | 3 | 27 |
| Addendum | |||
| The Snowfall inflicts Cold for 5 seconds to all friendly and enemy units every 10 seconds. | |||
| First clear | Regular |
|---|---|
3 Stars  3 Stars  60 | Guaranteed 9 Uncommon  Rare  Rare  Rare  Rare  Rare  |
| Normal | Clawbeast ×11, Icefield Warrior ×13, Icefield Caster ×3 |
|---|
| Recommended level | Elite 1 Level 1 | ||
|---|---|---|---|
| Sanity | Drill Plan | EXP | LMD |
| 9 | 1 | 90 (108) | 90 (108) |
| Unit Limit | Initial DP | Life Points | Enemies |
| 8 | 9 | 3 | 27 |
| Addendum | |||
| The Snowfall inflicts Cold for 5 seconds to all friendly and enemy units every 10 seconds. | |||
| First clear | Regular |
|---|---|
3 Stars | Common  |
| Extra | |
 | |
| Normal | Clawbeast ×11, Icefield Warrior ×13, Icefield Caster ×3 |
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