KremePuff

So in theory you play this on 6, Innervate, and then have 6 additional mana to spend? And if you have other spells in hand you can cast everything (as long as it's 6 mana or less) until you're out of cards? Seems sorta busted, right?

You get the 6 mana 1 time as, as far as I understand, spellburst doesn’t stack that way. But it still seems good. You can get 10 more mana on ten if you have innervate as well