EVIL MEETS ITS MATCH – The LEGO NINJAGO Arin's Spinjitzu Battle Mech (71839) building set lets boys and girls 7 years old and up command the new-generation ninja's towering battle machine from NINJAGO Dragons Rising Season 3 LEGO NINJAGO MINIFIGURES – Builders can stage epic showdowns between good and evil with an Arin minifigure equipped with a crystal katana sword, and the villainous Spectral Dragonian Warrior minifigure, plus an adorable Baby Riyu dragon companion figure INTERACTIVE FEATURES & DETAILS – Kids can construct a fully posable mech with a rotating torso, an opening chest cockpit, articulated arms and legs, and massive twin sword accessories to recreate battles from the TV show or imagine new adventures
20% below Amazon's reference price
At the October 4 check, the price was $19.99 — the lowest Dipp has recorded across 121 checks since July 24.
Lowest seen · 20% below typical · Checked 2026-10-05
Prime exclusive · Save 20% · Ends Oct 8, 2026, 2:59 a.m. ET
Price as of Oct 4, 2026, 11:47 p.m. EDT. Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon.ca at the time of purchase will apply to the purchase of this product. As an Amazon Associate I earn from qualifying purchases.Prices and availability change.
This is Dipp's observed history, not every price ever offered on Amazon.ca.
The latest observations Dipp has stored for this product. These are periodic checks, not a record of every price Amazon displayed.
| Checked | Price |
|---|---|
| Oct 4, 2026, 11:47 p.m. | $19.99 |
| Oct 4, 2026, 5:47 p.m. | $24.86 |
| Oct 4, 2026, 12:47 a.m. | $24.86 |
| Oct 3, 2026, 12:47 p.m. | $24.86 |
| Oct 2, 2026, 7:47 p.m. | $24.86 |
| Oct 2, 2026, 2:18 a.m. | $24.86 |
| Oct 1, 2026, 9:47 a.m. | $24.86 |
| Sep 30, 2026, 4:47 p.m. | $24.86 |
| Sep 30, 2026, 12:47 a.m. | $24.86 |
| Sep 29, 2026, 12:47 p.m. | $24.86 |
| Sep 28, 2026, 8:47 p.m. | $24.86 |
| Sep 28, 2026, 8:48 a.m. | $24.86 |
Nearest prices in this category, so today’s number has something to sit against.
18 checks since Sep 24 · $19.15–$24.04
Price as of Oct 5, 2026, 3:48 a.m. EDT. Prices and availability change.
125 checks since Jul 24 · $24.99–$39.86
Price as of Oct 5, 2026, 2:48 a.m. EDT. Prices and availability change.
120 checks since Jul 30 · $25.00–$46.55
Price as of Oct 5, 2026, 2:47 a.m. EDT. Prices and availability change.
122 checks since Jul 24 · $31.99–$37.97
Price as of Oct 5, 2026, 2:17 a.m. EDT. Prices and availability change.
19 checks since Sep 26 · $19.13–$37.68
Price as of Oct 5, 2026, 2:47 a.m. EDT. Prices and availability change.
119 checks since Jul 24 · $59.99–$79.99
Price as of Oct 5, 2026, 2:48 a.m. EDT. Prices and availability change.
The wider Toys catalogue on Amazon.ca, each product with its own recorded price history.