Collaboration Stages · Stage 5

Master Emerald's Protector

マスターエメラルドの守護者

Master Emerald's Protector is a Battle Cats stage in Sky Sanctuary. It costs 300 energy and sends 7 enemy spawn lines — led by Knuckles (Enemy) as the boss — against a 480,000 HP enemy base, and clearing it rewards 470,000 XP. Its enemies carry the Angel and Red traits, so cats that target them do the most work here.

Data updated: 2026-08-31

300Energy Cost
470,000XP Reward
480,000Enemy Base HP
4,500Stage Length
20Max Enemies
8.2Difficulty
Build a lineup for this stage Test your team vs this stage

Cats that counter Master Emerald's Protector

Cats whose attacks target Angel and Red, best DPS first — the traits this stage’s enemies actually carry:

Chun-LiLovestruck Lesser DemonBunny & CanardDaybreaker IzanagiMighty Rekon KorpsSea Maiden Ruri

Stage rewards

10% — XP ×500,000 · Treasure Radar27% — XP ×300,00063% — XP ×100,000

Enemy spawns (7)

EnemyStrengthCountFirst SpawnRespawnBase HP TriggerNotes
Goal Plate Base (Enemy Base)4800000%10s—0%Enemy base
Gabriel200%∞10s20s~23.3s100%—
Angelic Gory100%120s—100%—
Angelic Gory100%40s33.3s~40s99%—
Angelic Sleipnir100%1-6.7s—99%—
Knuckles (Enemy)2500%10s—99%Boss
Ms. Sign100%∞900s900s100%—
All Sky Sanctuary stages