Myth Mash

From BoardGameGeek:

Fast, fun and stylish, Myth Mash is a two-player card game born from a love of trick-taking, deck-building, and card-battling. Bid, bluff, and best your opponent in battle after battle as you cleverly combine the power of your heroes to win new cards and sweet, sweet treasure. Be careful, though; these heroes favor Peace above all else, so if you push too hard they may switch sides and join your opponent! Each round you'll draw a hand of seven cards from your deck, which you'll blindly bid across three battles. The winner of each battle is rewarded with a card--either a new hero to strengthen your deck, or a shiny treasure putting you one step closer to victory. The first player to collect 15 points of treasure wins! Mixed amongst these cards you'll also find Mash-Ups: a special third type of card that gives the Peaceful player (that's whoever lost the last battle) an important choice. You'll either trade hands, decks, or discard piles with your opponent. Sound crazy? It is! Don't worry, though; clever players will find creative ways to play around this, even from ahead.