1, no unlock, no props, no charge, completely free
2, support android phone above 2.2, the screen must be at least 480 * 800 or more (320 * 480 can also play, the effect is worse), efficient performance, power saving
3, support stand-alone game, no need to log in, no need to register direct game
4, super artificial intelligence, superb card skills, to provide players with a strong home and opponent
