Guerra de Mitos IV (Great Old Ones Invasion) is a card game set in a fantastic world where different mythologies coexist. It is a different, dynamic game designed to be able to build different decks with very distinct and varied strategies, and each installment increases both the number of available mythologies and the game possibilities. The game contains 150 cards split between the Great Old Ones and reinforcements for GDM I, GDM II and GDM III. Great Old Ones includes 2 pantheons (cards that define your game strategy) + 33 cards for the gods deck (which includes characters, events and resources) + 40 cards for the designs deck (actions, equipment and summonings)and reinforcements to 150 new cards for GDM. Each player in War of the Myths IV needs to build his own deck of at least 51 cards (1 pantheon / 20 gods / 30 designs) of his choice, and each installment increases the diversity of characters, actions and strategies you can use in order to achieve victory. Each player has to bring into play the cards his oracles offer him and play actions from the designs deck both in the influence phase (where the gods plan from their pantheon) and in the confrontation phase (where the characters who decide to go to battle fight to decrease the opponent’s power) to obtain supremacy or consign the opponent to oblivion.