How rare is the Blue Swordtail?

0.65% of all bonds in Threshing Game Online are Blue Swordtails, which makes it the 21st most common of the 30 breeds. 102 of the 16,384 possible runs lead to it.

Can a Blue Swordtail pass its colour to a hatchling?

Yes. In the Roost a blue parent passes blue to 50% of its hatchlings, or 70% when the other parent is black. The swordtail passes at 50%.

Blue Swordtail dragon: stats, odds and how to bond one

The Blue Swordtail is one of the 30 dragons you can bond in Threshing Game Online. It has a long straight blade that ends in a single point, a combat power of 266, and accounts for 0.65% of all bonds. Rare and unreadable. Blues ignore cadets who lead with one instinct and choose the ones they cannot work out.

Updated 11 October 2026

Try to bond one All blue dragons

Blue Swordtail dragon from Threshing Game Online.

Blue Swordtail stats

Blue Swordtail base stats and rank among the 30 breeds
Attribute	Value	Rank among 30
Combat power	266	9th
Might	66	16th
Agility	76	3rd
Breath	70	10th
Ward	54	19th
Share of bonds	0.65%	21st most common
Follows	balance	—

These are breed base stats. An individual dragon adds a bonus for its rarity (Common to Legendary) and a small variance of its own, so two Blue Swordtails are rarely identical.

How to bond a Blue Swordtail

Split your first six choices evenly across three instincts, two each, then make your seventh choice the fourth instinct you have not used. Favour direct choices: the shortest line to the problem.

One route that works, and the one with the best odds of surviving (78% chance of a bond):

The Gate. Hang back. Read the wind and the ridgelines first.
The Ravine. Keep walking. The Vale culls the weak.
The Ridge. Rope the squad together and cross at the pace of the slowest.
The River. Wade out where the codex says never to cross.
The Ashfield. Gather the tags of the fallen to carry home.
The Silent Colossus. Bow once, rise, and speak your own name.
The Judgment. Your courage. Stand in the heat without flinching.

Instincts shown on this route: Resolve, Defiance, Loyalty, Defiance, Loyalty, Resolve, Courage. Other routes reach the same breed. What matters is the count of each instinct and each tail, not the exact scenes.

A Blue Swordtail in the Roost

As a parent, a Blue Swordtail passes blue to 50% of its hatchlings and the swordtail to 50%. The other half comes from the ledge dragon you pair it with. Open the Roost.

Blue Swordtail questions

How rare is the Blue Swordtail?: 0.65% of all bonds in Threshing Game Online are Blue Swordtails, which makes it the 21st most common of the 30 breeds. 102 of the 16,384 possible runs lead to it.
Which choices lead to a Blue Swordtail?: Split your first six choices evenly across three instincts, two each, then make your seventh choice the fourth instinct you have not used. For the swordtail: favour direct choices: the shortest line to the problem.
Can a Blue Swordtail pass its colour to a hatchling?: Yes. In the Roost a blue parent passes blue to 50% of its hatchlings, or 70% when the other parent is black. The swordtail passes at 50%.