That’s Extendible Card Game. Too late to add the term to this week’s Parlay? Probably.
Bonzai entertainment released Infinite Power on RPGNow, and is a card game based in their Infinite Power Universe. You basically get to play a superhero and beat up on the other player’s super hero. While I’m sure there’s plenty like it, this is the first time I’ve seen a strictly card game released on RPGNow.
Being extendible, you’ll know what cards you’re buying when expansions come out. No random booster packs, etc…
The game only costs $6.99, and looks fairly interesting.