I've played more deckbuilder games than Collectibles, but just as a reference point for the lazy and uninitiated, this is more like Magic, right? Triumph's comment up above threw me off a little, as I'd rather play something like Ascension as opposed to Magic. That is particularly true if it's handled more like Magic the Gathering Online and less like Duel of the Planeswalkers, of which I prefer the latter.