I really don’t give enough credit to Titans Uprising, a HTTYD mobile game. I knew that some of the dragons were created specifically for the game, as well as including ones from the shows and the movies.
In this specific game, they have bios for each of the dragons you have in your arsenal. Typically how trainable they are, or how those on Berk came to interact with it. But down below, this is a Verdigriff. She’s a Fireworm queen. Have a read on how her creation came to be.
Now this in my opinion, is a nicely thought-out bio. Longer than most of the dragons you can read about.
With the bio of the Fireworm Queens, it comes to show something else. They gave us, more Viggo lore.
And it only makes him all the more terrifying.
Should you have the game, and have her, check the bio of Enhanced Fireworm Queen. She is also a result of Viggo’s experimentation. He was making a damn army of Fireworm Queens, and you best believe he would’ve used them against the Dragon Riders if they weren’t so uncontrollable. The bio also says that the Queens escaped when Ryker turned the Hunters against him.
Just imagine if that had been included in canon. Or even an offhand mention. To see the Riders reaction to these Fireworm Queens and possible evidence they were prisoners.
And I would like to say, having Viggo be the cause of these dragons’ transformation. I wager to say it’s another factor that could make him more devastating than Drago.