Piraka Stronghold

Notable parts

• 1 mould appears in no other set: Large Figure Mask Vezok (Piraka Vezok Style).
• 2 parts come in a colour no other set has for that mould: Support 2 x 2 x 11 Solid Pillar (Dark Blue) ×2; Equipment Whip [aka Plant Vine] (Pearl Light Gray).
• 23 parts appear in only a few other sets: Animal Body Part / Plant, Tail / Neck / Branch / Trunk, Middle Section with… (Pearl Light Gray) ×6 — also in 8892 Piraka Outpost (all Bionicle); Brick 1 x 6 x 5 (Dark Bluish Gray) ×2 — also in 8877 Vladek's Dark Fortress; Wheel Wagon Huge (43mm D.) (Pearl Light Gray) ×2 — also in 7092 Skeletons' Prison Carriage; Legs Mechanical, Bionicle (Reddish Brown) — also in 8893 Lava Chamber Gate (all Bionicle); Brick 1 x 2 x 2 with Inside Axle Holder (Dark Blue) ×6 — also in 8893 Lava Chamber Gate, 8757 Visorak Battle Ram (all Bionicle); Large Figure Weapon, Claw / Fang, 2 Pin Holes (Visorak Keelerak) (Pearl Light Gray) ×4 — also in 8746 Visorak Keelerak, 8926 Toa Undersea Attack (all Bionicle); Large Figure Weapon, Claw / Fang, 2 Pin Holes (Visorak Oohnorak) (Pearl Light Gray) ×4 — also in 8624 Race for the Mask of Life, 8744 Visorak Oohnorak (all Bionicle); Arm Mechanical with Clip [Thin Support] (Bright Light Orange) ×2 — also in 8624 Race for the Mask of Life, 8893 Lava Chamber Gate (all Bionicle); Chain 17L [21 Links] (Reddish Brown) — also in 8781 The Castle of Morcia, 7787 The Bat-Tank: The Riddler and Bane's Hideout; Large Figure Mask Olmak (Pearl Gold) — also in 8624 Race for the Mask of Life, 8734 Brutaka (all Bionicle); Plant / Creature Body Part, Vine / Tail / Tentacle / Bionicle Spine, Spiky (Dark Blue) — also in 8893 Lava Chamber Gate, 7772 Lobster Strike; Brick 1 x 2 x 5 with Blocked Open Studs and Bottom Stud Holder with Asymmetric… (Dark Blue) ×12 — also in 41318 Heartlake Hospital, 8757 Visorak Battle Ram, 41722 Horse Show Trailer; and 11 more.
• 24 parts are otherwise only found in Bionicle sets: Large Figure Weapon Staff, Rahkshi Staff of Disintegration (Guurahk) (Pearl Light Gray) ×4; Torso Mechanical, Bionicle (Pearl Dark Gray) ×4; Torso Mechanical, Bionicle (Pearl Light Gray) ×4; Large Figure Weapon, Zamor Sphere Launcher (Pearl Light Gray) ×3; Legs Mechanical, Bionicle (Black) ×2; and 19 more.
• 25 moulds first came out in 2006, including in this set: Arm Mechanical with Clip [Thin Support] ×24; Legs Mechanical, Bionicle ×12; Torso Mechanical, Bionicle ×12; Weapon Blade (Toa Kongu) ×12; Projectile, Large Figure Weapon, Zamor Sphere / Ball ×8; and 20 more.
• 8 existing moulds first came out in their colour in 2006, including in this set: Animal Body Part, Barb / Claw / Tooth / Talon / Horn, Small (Pearl Light Gray) ×36; Animal Body Part / Plant, Tail / Claw / Horn / Branch / Tentacle, End Section (Pearl Light Gray) ×6; Animal Body Part / Plant, Tail / Claw / Horn / Branch / Tentacle, End Section (Glow In Dark Trans) ×6; Animal Body Part / Plant, Tail / Neck / Branch / Trunk, Middle Section with… (Pearl Light Gray) ×6; Support Round 1 x 1 x 6 Solid Pillar (Dark Blue) ×6; and 3 more.

Calculated from Rebrickable’s public set inventories, excluding sticker sheets and spare parts.