Batman Batsub and the Underwater Clash

1 part comes in a colour no other set has for that mould

• Helmet with Fish Fins on Sides and TopFlat Silver

3 parts appear in only a few other sets

• Hair Long Parted in FrontYellowalso in 21322 Pirates of Barracuda Bay, 71026-3
• Minifig Neckwear Scuba Breathing RegulatorBlackalso in 75251 Darth Vader's Castle, 71046-12
• Weapon TridentPearl Titaniumalso in 41600 Aquaman, 76095 Aquaman: Black Manta Strike, 70840 Welcome to Apocalypseburg!, 76085 Battle of Atlantis

2 existing moulds first came out in their colour in 2019, including in this set

• Hair Long Parted in FrontYellow
• Neckwear Cape, Tear-Drop Neck Cut [Spongy Stretchable Fabric]Magenta

3 minifigure parts with their print are only in this set

• Minifig Head Ocean Master, Dual Sided, Balaclava with Light Nougat Face, Red…Flat Silver
• Torso Chest Armor, Black, Scales, Silver Belt Print, Dark Purple Arms, Black…Dark Purple
• Torso Muscles, Gold Collar and Belt with 'A' Buckle Print (Aquaman), Bright…Bright Light Orange