Summoning | Minions Hearthstone Guide

To play a minion card, you first need to summon it into the battlefield. To do that, you simply need to select an appropriate card and drag it onto the table, unless there are special requirements for this minion to be summoned, given in the card's description, e.g. having a definite number of minions on the table. You also need to of the mana cost involved in using that card. This value is given in the upper-right corner of the card, on the blue crystal symbol. The River Crocolisk (2), mentioned above, requires 2 mana crystals to be summoned. If you do not have the 2 crystals , at least, in a given turn, then you will not be able to summon this card and you need to wait until the next turn begins.

Each of the cards summoned to the table receives fatigue which disappears in the next turn. In this state, the minion cannot attack and needs to wait for the next turn. The exception are the cards with the Charge ability, which are not subject to the factor of fatigue and who may attack in the same turn in which they were summoned.