I could wax poetically about this game for hours, but I will try to keep it brief. I have played a lot of board games, and a lot of 2 player board games, and nothing compares to the dynamism and feeling of playing summoner wars. Each faction is so unique and thematic, creating awesome synergies you discover as you play. Matching up against other factions, each of which is very well balanced against each other, provides a different type of challenge every game. You could play this 1000 times and every game feels like a new experience where you learn something and grow as a player. I know this because I have played this over 1000 times and every game feels so different and exciting. Positioning your units and summoner in the right places is difficult to master, but so rewarding when pulled off well.
I cannot recommend this enough to someone who wants a competitive, extremely tactical, thematic, and explosive game.