Casting cards

Casting Entity or Host cards
Each card has a soul cost on it. This number indicated how many of your resources that card will use up while it is on the field. Once the card leaves the field, the card releases back to you the soul slots that it once occupied.

To play a card, first you must make sure that you have at least as many soul slots available as the cost of the card. If you do, merely play the card from your hand, and subtract from your total soul slots the amount the card uses up.

Note: When a card leaves soul slots, it returns only the amount of soul slots it was occupying, not necessarily the cost of the card.

Sometimes cards may have an effect which reads similar to, 'place this card into a soul slot' or 'play that card into a soul slot' - this effect places the card stated into one of your current soul slots instead of the normal amount the card would occupy. It acts exactly as the card would normally, however when the card leaves the field only one soul slot is returned to you, as that is the amount the card was occupying.

Casting Sacrifice cards
Sacrifice cards are different in their casting, as they do not use soul slots to cast. Sacrifice cards also have a soul cost, but instead of occupying soul slots, you must instead send that many Entity cards you control from soul slots to the graveyard.

''Example: You control 2 Entities, costs are irrelevant, and have in hand a 1 cost Sacrifice card. In order to play that card, you must send one of those Entity cards from their soul slots into the graveyard. You get the soul slots for the Entity leaving them as a cost of the Sacrifice, and therefore before the effect is resolved.''

Casting Global cards
Global cards are cast from your hand, and have no cost. However only one Global card may exist on your side of the field at any one point in time - therefore if you play a Global card from your hand and one is already in the Global zone, you must send the one that already is in play to the graveyard, and then play the new one into the Global zone.