Unlimited cards from the base set could be worth around $40 USD a piece, but it may vary depending on the Pokmon
These are predominately green card effects, but blue cards and colorless cards get in on the untapping fun too
Its an interesting decision, and while its definitely one thats split the player base a little, it does make for an interesting time
It is still a fine card, it will find you useful things and hopefully put some other useful things in the bin but it is just on theme filler in that setting rather than something you actively want
Some collectors firmly stand by Japanese cards having better quality and production value, too
Necrozma is integral to the lore of the Alola region, where it first appeared in the games Pokmon Sun and Moon and their enhanced versions, Ultra Sun and Ultra Moon