You can keep it in against Burn, unlike Thoughtseize, but how good is it against a deck like Blue-White Control
Playing a creature will usually put you in a poor spot against removal, whereas removing the threat puts the onus on your opponent to present another one
This Forbidden Light Yveltal may have a bit of a cheesy 3D style with the electricity effect, but it's also such a fearsome and intense depiction of this Legendary Pokmon that it easily earns a spot.
Though Blastoise sold in November of 2020 for approximately $4,500, its price has dipped since then with the last sale of a PSA/CGC 10 at $3,150
You want to run it in decks that utilize a lot of creatures and also functions in metas that use lots of enchantments and want graveyard hate
Then when it dies it becomes an enchantment that's harder for your opponent to interact with