#1 Lightning Dragon Battle
Ages: 8-14
Pieces: 645
Set: #2521
The LEGO Ninjago Lightning Dragon Battle (Set 2521) was officially released on August 24, 2011. This Set is apart of the Ninjago "Pilot Season" theme and was retired later that same year. Whereas, a total of 645 pieces are included in the Set to build the Dragon and a Skulkin Helicopter. The Set features four minifigures: Jay DX, Sensei Wu (black kimono), Frakjaw, and Kruncha. When it was originally released, the Set retailed for $79.99 USD. The original package included nine weapons, such as the Nunchucks of Lightning, and a character spinner. Today, a New and Sealed Set sells for approximately $900 to over $1,300 on BrickLink or eBay. A Used, complete version of the Set generally sells for around $460 to $800, depending on condition.
#2 Fire Temple
Ages: 8-14
Pieces: 1174
Set: #2507
The LEGO Ninjago Fire Temple (Set 2507) was officially released on August 5, 2011. The Set contains 1,174 pieces. Seven minifigures were included: Sensei Wu, Zane, Kai, Nya, Lord Garmadon, Samukai, and Kruncha. Furthermore, the Set features a Temple that could split open to release a brick-built Fire Dragon. When the Set was first released, it had a retail price of $119.99. Today, a complete, used version of the Fire Temple Set typically sells for around $230 to $250 on eBay. A New, Sealed Set typically sells for around $600 to 800 on eBay.
#3 Earth Dragon Defense
Ages: 7-14
Pieces: 227
Set: #2509
The LEGO Ninjago Earth Dragon Defense (Set 2509) was officially released on August 5, 2011. This Set, part of the Ninjago Pilot Episodes Wave, contains a total of 227 pieces. Two minifigures are included in the Set: Cole DX and Wyplash. The original retail price for the Set upon its release was $34.99 USD. In a New or Sealed condition Today, the Set sells for approximately $400 to $500 USD. The value of a used, but complete, Set typically ranges around $80 to $119 USD without the box. Ultimately, the Set features the buildable "Rocky" Earth Dragon, the Scythe of Quakes, and a small side build.
#4 Garmadon's Dark Fortress
Ages: 8-14
Pieces: 518
Set: #2505
The LEGO Ninjago Garmadon's Dark Fortress (Set 2505) was officially released on January 4, 2011. This Set was part of the first wave of Ninjago products tied to the Pilot Episodes. The Set contains a total of 518 pieces, which are used to build the Fortress and a large spider accessory. Six minifigures are included in the Set: Kai, Nya, Lord Garmadon, Samukai, Bonezai, and Chopov. The Fortress features various play functions, including flick-fire missiles, a moving throne, and a jail tower. When initially released, the Set had a retail price of $69.99 USD. Today, the Set is a retired collectible, with a complete used version typically selling for around $150 to $175 USD. A New, factory-sealed version of the Garmadon's Dark Fortress can sell for roughly $400 to over $500 USD on eBay.
#5 Skull Truck

Ages: 8-14
Pieces: 515
Set: #2506
The LEGO Ninjago Skull Truck (Set 2506) was released on August 5, 2011 and retired on November 13, 2012. The Set contains 515 pieces in total, used to construct the large, four-wheeled vehicle. Four minifigures were included in the Set: Jay, Zane, Lord Garmadon, and Wyplash. The minifigures came with various weapons, including the Nunchucks of Lightning, a thunder bolt, a bone axe, and a spear. The main model features a skull with moving jaws, two side cages to trap enemies, and a functional, firing bone fist. When the Set was originally released, it retailed for $59.99 USD. Today, a complete Set in used condition typically sells for approximately $80-120 USD. A New, Sealed version of the Set can sell for roughly $200 to $280 USD.
