"There are few demons that Holy Nightmare sings high praises about, but this beautiful monstrosity is absolutely one of them. Raging Flyvern is the best of the best among our entire selection of demons, and if you want a super-powered, bloodthirsty killing machine, you'll hardly find much better than this beauty. Created from the essences of two already powerful demons, this creature is guaranteed to ravage all that dare to cross its path. It is relentless in its pursuits of foes, custom-designed by Nightmare himself to ravage lands and tear foes into tiny pieces. But perfection doesn't come cheap, and if you're vying to purchase a demon as powerful as this, you better be able to pay."

So here we have Raging Flyvern, which is actually Saffron as a demon. When it became increasingly clear to Holy Nightmare that Dedede wasn't planning to pay his debts any time soon, the company responded by repossessing his assets - even if they never owned her in the first place - and claimed Dedede's right hand as their own. Nightmare himself forcefully changed her into this demon beast, draining the life force from both Rizardomo and Master Kontoraa to do so. It was intended to be his ultimate killing machine, and he was more than ready to use her to even murder her own king. Unfortunately for Nightmare, while his influence was strong - and his punishments painful - nothing could beat the loyalty and friendship she held with King Dedede... though it almost wasn't enough.

Raging Flyvern is already super powerful on its own, with a fierce slash and a powerful bite, but it also can ravage foes by firing off its spiked feathers as projectiles, as well as breathing fire. The feathers themselves can expand as far as need be, and she can even surround herself with a spiky wall as protection. The fire she breathes gives the Fire copy ability, and her spiked feathers can give either Wing or Needle copy ability - depending on how she's using them. Usually, fired feathers give wing, but ones sucked directly off the body give Needle. Unfortunately, she is highly resilient to those very abilities, and as such, quite a match for Kirby. She is a massive beast, and is easily large enough to crush the homes of the residents of the village under her weight. She is incapable of speech and can only growl and roar. When her emotions get the best of her, she enters a berserk mode, where she wildly attacks friend and foe alike in a furious rage. Though the power boost was intentional, the lack of awareness towards friend and foe was a mistake, and one Nightmare was planning to swiftly deal with by extreme force. Given time, this would've been weeded out, and been little more than a brief power boost. When berserk due to emotional instability, her eyes shift back to their normal colour, and she begins to cry visibly as she struggles to control herself. Overall, this creature is NOT one you want to take lightly, and is a message to Dedede about why trusting Holy Nightmare was a terrible idea.