"Nebula Dragon" Rating Score by とき

It has the effect of being able to Special Summon both in Defense Position by showing itself and the level 8 dragon from the hand, and the effect of being able to salvage the level 4 light darkness dragon by excluding itself in GY.
With a large number of level 8 dragons, he can lead a rank 8 Xyz with a single answer with Deck. There is a disadvantage that only light and dark dragons can special summon after special summon, but rank 8 dragons only have light and darkness. There are many targets such as Tachyon, Titanic, and Prime Photon.
A deck with many level 8 dragons would probably be Blue-Eyed. Galaxy has only about photon dragons, so it's surprisingly not good enough. Of course, it is also possible to collect the level 8 monsters he used in the image of Mizael.
Compared to Seyfert, the GY activation effect has become somewhat stronger because it is level 4. This card itself is not as strong as Seyfert, as it also seeks decks with a lot of level 8 dragons. Still, the salvage that increases your hand is powerful, but can you prepare a target...
It's a card that specializes in Rank 8 Xyz, so I'd like to understand that before using it.