I really want to love this game, but unfortunately this will be the third time now that the game has stolen summons from me. First was a tenfold and the other two were single summons - the game froze and force shut on me. Very disappointing indeed.
Keeping this short and simple: If you like Clash Royale-esque gameplay and you like the Terra Battle series, then this is a nice little game for you.
Otherwise, not sure if this will catch on if a Western release is given.