"Sinister Serpent" Rating Score by みめっと

It was designated as a restricted card for Super Express, and was banned for a long time until it was errataed.
Speaking of Reptile, if he had a GY effect, it could be said that this monster was the only card before the appearance of Snake Rain.
At the time, he had a card like 《Painful Choice》that far surpassed Snake Rain as a GY manure card...
It was still a monster with a general purpose and strong effect, and only the race was a Reptile monster, but with the name Turn 1, it was reduced to a mediocre card with a slow-acting add + 1.
Furthermore, if you use this card as a cost or send it to GY immediately after collecting it, you will have the disadvantage of being removed from GY during the opponent's end phase before your next standby phase comes. However, just because it was a useless demerit, it is now possible to stack 3 copies, it is not possible to remove all cards, and it is a demerit that can be avoided with a little ingenuity. .
Isn't there a fatal impediment to operation? The more I think about it, whether or not it has a disadvantage, it's really slow and subtle to have only one card in your standby once, so if you can use this kind of effect once during the duel. I think it's also a manifestation of low expectations for this card, which is said to be a good character.