Planecrash

Planecrash is a game played with Magic: The Gathering cards, though it has almost nothing to do with that game. Players select a deck of cards of various colors (color determined based on M:TG rules), shuffle it, then play from the shuffled deck. The place a card on one of three piles based on color relationships, with the chance to capture a pile or create a particular combination of colors on top of the three piles. Creating the correct combination, or collecting the most cards, results in a win.

Full rules at: https://web.archive.org/web/20070504074239/http://www.luchacabra.com:80/?p=30