Some definite synergy with Puzzle Box of Yogg-Saron, as well as other high cost spells you want to cheat out with this card. comparing this to Reno the Relicologist, we see that for 2 more mana we can have a free flamestrike without having to build our entire deck around it.
So this card seems pushed. It casts a copy so you don't consume the spell. This card opens up alot of possibilities in deck building. Again, though in Wild, this does seem rather strong in Highlander Style decks. In Spiteful Summoner decks. In Big Mage decks with Dragon's Fury. Summoner Mage also likes this because Power of Creation is a power house turn. Turn 10, you have the craziest board ever with Kadgar.
This SEEMS really really powerful. And this will probably slot right into the Highlander decks day 1.
Is it just me, or is the power level of this expansion out of step with the other Dragon/Raven sets? This seems Kobolds level...
The good news is Blizzard said they will be much more proactive to nerf cards now. Maybe they are printing broken stuff with the idea that they can always tune it back if it is way too OP. Time will tell though.
They also learned their lesson last year when they released 3 expansions that had a very low power level and people weren't buying as many packs.
This card is insane. Even without the discover, I don't think this card'd be bad. But being able to pick the spell makes it insane and so versatile. You can use it for a tempo swing with Power of Creation, prepare for an OTK with Luna's Pocket Galaxy, or control the board with a Blizzard.