Good card even in the second variant where you get only 2 cards which is pretty important since IMO these spellstones need to be decent even if topdecked if they are to see any play. Shaman and warrior spellstones on the other hand are kinda meh even in their second version which makes them terrible topdecks.
Don't know how to evaluate it. On the first glance it looks really promising, but I think it needs to be play-tested a lot. My initial thoughts are making a value elemental mage, but like I said, it needs to be tested to see how good or bad will it perform.
I really don't see why you would ever play this card when you have Cabalist's Tome available. To get to 3 random spells you have to play 6 elementals and the card has to be in your hand and If you just want a random spell you would just play primordial glyph. I dunno maybe I'm missing something.
Actually its only four elementals. Also if you have say a fire fly you can drop its token and then the spell is already level 2. This card is pretty good!