"Number 91: Thunder Spark Dragon" Rating Score by シエスタ

Although it is rank 4 without binding, the neck is heavy because it is made of three materials.
The range expands depending on the number removed with a total removal, but the situation where this card is effective. In other words, when it is deployed in large numbers, in today's inflationary situation, such situations are often solidified by resistance or suppression effects.
In such a situation, it's extremely difficult to get this heavy material and let it pass through the effect quietly, and it's difficult to play an active role only when it's essential. I also want to be careful about getting myself involved.
If you remove 5 of them, it's a total removal of only your opponent, but this card can only be X Summoned with 3 bodies, so you can't activate it on your own.
In addition, most of the material increase cards can't be said to be very practical, and as mentioned above, the more cards there are in the opponent's field, the more difficult it is to be effective, so honestly, the risk is higher than the return.
There is also a Rank 4 sweeper with Butte, so if you use this card, you want to take advantage of the fact that it is a 3-body material. Among the 3-body materials, it has a valuable all-removal effect, so Star Seraph will probably be useful.
It hasn't been reprinted once, so if it's reprinted, I'd like you to errata the material specification to 3 or more.