Don't waste any money on this game. If you play it do it free to play. The summons for hero's are so ridiculously low. A lot lower than they quote I done more than 1000 epic summons and only every had 7 5 star heroes. The materials need to upgrade these are non existent even at destroying titans at level 11+ or in the so called diamond arena and the board's are fixed by computers, even though they deny this. Total wate of time and effort.