LEGO 71851 Kai's Dragon Mech Battle Pack: Set Guide

Specifications

Set number	71851
Release year	2026
Piece count	85
Minifigures	3
Theme	Ninjago
Building instructions	Download the instructions on lego.com

Where to buy set 71851

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LEGO Ninjago set 71851, Kai's Dragon Mech Battle Pack, depicts a dragon mech associated with Kai. Released in 2026, it contains 85 pieces and presents a compact Ninjago combat scene built around minifigures, ninja weapons and a small action model.

Kai's Dragon Mech Battle Pack belongs to the Ninjago theme and focuses on a small scale battle setup. Its main subject is Kai's dragon mech, a mechanical dragon inspired build that fits the theme's mixture of ninja action, elemental enemies and stylised character variants.

The set contains 85 pieces and 3 minifigures: Sora, Mask (Draconus Robes), Earth Monster and Kai (Draconus Form, No Wings or Tails). The French retail title also refers to katanas, so combat accessories can be noted without adding unsupported functions or play features.

This is best understood as a compact battle pack rather than a large display model. It supports quick play scenes, adds named characters to a Ninjago collection and can sit alongside larger sets from the same theme as a source of extra figures, an opponent and a small mech based build.

Included minifigures

Sora, Mask (Draconus Robes)Quantity : 1
Earth MonsterQuantity : 1
Kai (Draconus Form, No Wings or Tails)Quantity : 1

Frequently asked questions

How many pieces does LEGO set 71851 Kai's Dragon Mech Battle Pack have?

LEGO set 71851 Kai's Dragon Mech Battle Pack has 85 pieces. It was released in 2026 as part of the Ninjago theme.

What year was LEGO set 71851 released?

Set 71851 Kai's Dragon Mech Battle Pack was released in 2026 and belongs to the Ninjago theme.

Which minifigures are included in set 71851?

Number of minifigures in LEGO set 71851 Kai's Dragon Mech Battle Pack: 3. Their names and quantities are listed in the “Included minifigures” section.

Where can I find the building instructions for set 71851?

The instructions for LEGO set 71851 Kai's Dragon Mech Battle Pack can be downloaded free as a PDF from the official lego.com website, under “Building Instructions”, by entering the number 71851.

Which version of Kai is included in set 71851?

The listed figure is Kai (Draconus Form, No Wings or Tails). That identifies it as a specific Draconus Form variant.

Does the set include an enemy character?

Yes. Earth Monster is listed among the 3 minifigures, giving the set a clear opponent for Kai and Sora.