I like the concept, but permanent bury? Wouldn't it be nice if your opponent can unbury with garboid. Plus, this gives a reason to run trident and indirectly; flooding.
For some reason I like it more if it was more costly, like Anubis, because that is some serious ability there. You can virtually negate damage from monsters excluding Dagons with a Diamond Shield and this card, having the damage output without it. The low cost also means it will seriously dent rush decks, which I like, but the skill seems about as powerful as Arctic Squid.
For the quanta gain, that's a pretty self sufficient card. Unlike Anubis, Catfish can use it ability, if only once. Combine it with a low cost, and this can hit the field nicely.
What would this bury do to growth cards? Does the bury work after it?