When you open the Store user interface you'll initially see an Equipment & Runes Summon user interface. Here you can either pick to opt for a basic 1 card summon, or a 10 + 1 cards. In my viewpoint it's finest if you save 2500 Crystals and choose the 11 summons, due to the fact that you're essentially getting one free of charge! The 1 card summon offers you 1 free every 12 hours, so make sure you constantly log in to the game at least to declare this, since you never ever know when luck may strike.