The Battle of Helm's Deep

Notable parts

• 1 part comes in a colour no other set has for that mould: Flag 7 x 3 with Rod (Dark Green).
• 6 parts appear in only a few other sets: Brick Sloped 45° 2 x 4 Double (Light Bluish Gray) ×13 — also in 8129 AT-AT Walker; Door 1 x 3 x 4 Right - Open Between Top and Bottom Hinge (Reddish Brown) ×2 — also in 10228 Haunted House; Shield Broad with Spiked Bottom and Cutout Corner (Pearl Titanium) ×2 — also in 9471 Uruk-Hai Army, 9473 The Mines of Moria (all The Hobbit and Lord of the Rings); Wing / Blade 1 x 4 with Pin Hole (Flat Silver) ×2 — also in 9471 Uruk-Hai Army, 9553 Jay ZX; Helmet Castle with Lateral Comb [Uruk-hai] (Pearl Titanium) ×2 — also in 79007 Battle at the Black Gate, 9471 Uruk-Hai Army, 30211 Uruk-Hai with ballista (all The Hobbit and Lord of the Rings); Minifig Neckwear Beard, Full with Braided Moustache Ends (Reddish Brown) — also in 71220 Gimli Fun Pack, 79006 The Council of Elrond, 79008 Pirate Ship Ambush, 9473 The Mines of Moria.
• 12 moulds first came out in 2012, including in this set: Brick Special 1 x 2 with Masonry Brick Profile ×40; Weapon Sword / Greatsword Pointed with Thin Crossguard ×4; Weapon Sword (Uruk-hai) ×3; Helmet Castle with Lateral Comb [Uruk-hai] ×2; Shield Broad with Spiked Bottom and Cutout Corner ×2; and 7 more.
• 2 existing moulds first came out in their colour in 2012, including in this set: Brick Wedged 2 x 2 Facet (Light Bluish Gray) ×36; Door 1 x 3 x 4 Right - Open Between Top and Bottom Hinge (Reddish Brown) ×2.
• 8 minifigure parts with their print are only in this set: Helmet with Cheek Protection and Horsehead Comb (Rohan Style) with Gold Theoden… (Dark Brown); Hips and Dark Brown Legs with Long Gold Coattails Print (Haldir) (Dark Brown); Minifig Head King Theoden, Dark Tan Goatee, Smile / Determined Print (Light Nougat); Minifig Head Uruk-hai (Berserker), White Face and Teeth, Plate on Reverse Print… (Dark Bluish Gray); Minifig Neckwear Armor Breastplate with Leg Protection, LotR King Theoden Print (Dark Brown); and 3 more.

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