Kai - Hero, Master of the Mountain

njo593 · Ninjago

Master of the Mountain · 2020

Kai - Hero, Master of the Mountain

Figure ID

njo593

Theme

Ninjago

Year Released

2020

Rarity

Common/Uncommon (Exclusive to the mid-high range sets of the wave)

Head

Double-sided yellow head with Kai's signature scar over the right eye and serious/determined expressions. It features a red wrap under a decorative Pearl Gold knight helmet.

Torso

Red torso with intricate 'Hero' armor printing featuring a lion-motif crest, silver metallic accents, and chainmail details on front and back.

Legs

Red legs with red hips; features printing of a tactical sash and white/silver wrap bandages around the knees and shins.

Accessories

Includes a Pearl Gold knight helmet, a large Pearl Gold pauldron (shoulder armor), a round shield with a lion beast print, and a sword with a brown hilt/pommel.

Color Scheme

Primary Red and Pearl Gold, with silver and brown accents.

Printing Details

High-quality pad printing on the torso (front/back) and legs. Includes metallic silver inks to represent armor plates.

Variants

This specifically refers to the njo593 'Hero' version. Other Kai variants from the same year include the 'Legacy' version and 'Spins' version.

Condition Notes

Watch for paint rubbing on the gold shoulder pauldron and loosening of the hilt attachment. The gold shield print is durable but susceptible to scratches.

Estimated Value

Used: $5 - $8 USD | New/Mint: $10 - $15 USD (Prices vary by region)

Price (New)

Included in set 71720 Fire Stone Mech ($69.99) and 71721 Skull Sorcerer's Dragon ($79.99).

Compatible Sets

71720 Fire Stone Mech, 71721 Skull Sorcerer's Dragon

Character Background

Kai is the Elemental Master of Fire. This version represents him in the Shintaro mountain regions where the Ninja adopted heavy armor to fight the Skull Sorcerer.

Design Notes

A significant departure from typical ninja stealth attire, utilizing a 'Dungeons & Dragons' inspired aesthetic with heavy plate armor molds.

Similar Minifigures

Hero Cole (njo595), Hero Nya (njo596), Hero Jay (njo591), Hero Zane (njo592), Hero Lloyd (njo601).

Collectibility

Moderate; essential for completing the 'Hero' ninja team from the Master of the Mountain season.

History

Released during the Summer 2020 wave, marking the 13th season of the Ninjago television series.

Interesting Facts

The armor used for this line was designed to be compatible with the board-game style play features included in the larger 2020 sets.

Display Suggestions

Best displayed alongside the Fire Stone Mech or with the other four 'Hero' ninjas on a grey stone-textured baseplate.

Modification Potential

The breastplate and helmet are high-demand parts for MOC builders creating medieval fantasy knights.

Overall Assessment

A visually striking variant that blends the traditional Ninja aesthetic with classic Castle themes. Excellent value for its high-detail printing and armor pieces.

Notes

Ninjago Kai fire and Stone mech set

Identified on 5/10/2026