Crocodile Bone Mask

For the Halloween event collectibles, after collecting, you can go to The Royal City of Arcadia to Redeem rewards from "<Collection Angel> Flash".
Use "Halloween Ornament" to Redeem the following items:
Praetor Upgrade Stone x5
Use "All Ghosts Silver Badge" to Redeem the following items:
Star Parade Mega Pack x1
Use "Pumpkin Pie" to Redeem the following items:
Flying Broomstick Gift Box x1
Use "Crocodile Bone Mask" to Redeem the following items:
Colorful Hair Accessory Gift Box x1
Use one of each Halloween gift to Redeem the following items:
Azure Star Protection Gift Box x1