Its named after an existing card which is always a problem because especially for old heads like me theres going to be a problem where you name a thing and Im automatically going to think about that card and this has nothing to do with this new card which means that theres an association break
Although it is a high-class monster, I think that there is no problem because it can be Special Summoned by the effect of "Ancient Warriors History - Kyosho no Rebellion", for example
DARK is the only main Attribute represented by two Signer Dragons instead of one ("Red Dragon Archfiend" and "Black-Winged Dragon"), while WATER is the only main Attribute not represented by any of them ("Stardust Dragon" is WIND, "Black Rose Dragon" is FIRE, "Ancient Fairy Dragon" is LIGHT, and "Life Stream Dragon" is EARTH).
They art part of 'The List' along with Special Guests for #MTGThunderAlso in 'The Vault' - Who doesn't love a value engine in Magic
It also takes three Energy to attack, but the payoff is worth the effort