Firstbourne looks the part — a massive flame-wing dragon with a rider throne — but LEGO® charged premium prices for a build that only delivers mid results. The B- lands where it lands for a reason.
The parts alone are worth about 87% of the street price — the basis for this D+ price read.
FairParts are worth about 87% of the price — close to what the set is worth.
The Firstbourne dragon has genuine shelf presence: wide wingspan, fire-orange color blocking, and a throne-saddle that gives it a distinct silhouette. Six minifigs sweeten the package, and for Ninjago completionists this one hits the lore sweet spot. The build itself is serviceable — dragon limb construction follows familiar LEGO® patterns without much surprise — but it holds together visually when finished. Where this set stumbles is the price tag; $69.99 for 892 pieces in 2018 was a stretch, and the D on value reflects that plainly. The dragon theme carries a lot of the weight here, because the pure build mechanics won't blow anyone away. If you love Ninjago dragons and can catch it on sale, the gap closes. At full retail it was always a hard sell.
This grade blends these community reviews with set facts and market pricing, and updates as new reviews come in.