Collaboration Stages · Merc Storia: Showdown · 7/8
Energy115
Clear XP3,450
Base HP250,000
Map length5,600
Max enemies5
Spawn interval0.03s
Enemy traits 
Floating 
Traitless
Floating Traitless Crown difficulty
All enemies ×100% magnification
No restrictions
All enemies ×150% magnification
No restrictions
All enemies ×200% magnification
No restrictions
All enemies ×300% magnification
- Special · Rare only
Boss
Spawn timeline
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Enemies 7 types
| Enemy | Count | Mag. | HP | Attack | First | Respawn |
|---|---|---|---|---|---|---|
 Fuu | 3 | 100% | 30,000 | 1,942 | Start | 10–20s |
 Celesse | Unlimited | 400% | 1,000 | 200 | 6.67s | 23.33–33.33s |
 Rei | 3 | 200% | 80,000 | 4,246 | 40s | 3.33–6.67s |
 Norn | 3 | 400% | 12,800 | 1,720 | Start | 0.67–3.33s |
 Serum | 3 | 300% | 27,600 | 1,800 | 66.67s | 1.33–3.33s |
| Serum | Unlimited | 300% | 27,600 | 1,800 | 86.67s | 33.33–46.67s |
 Wyvern Boss | 1 | 100% | 380,000 | 6,555 | 80s | — |
| Rei | Unlimited | 200% | 80,000 | 4,246 | 80s | 46.67–53.33s |
 Ms. Sign | Unlimited | 1200% | 120,000 | 12 | 900s | 900s |
HP and attack include the magnification.
Clear rewards
If the reward chances add up to more than 100, the rows are rolled in order and each later row shares what is left.
Score rewards
Earned when your battle score reaches that value.