Summon spirits to your field, gain the mana specific to that spirit, and use that mana to buy and build tower cards. Get 7 tower stories and you win! Tateruto is a competitive and fleshed out mini-strategy game. You're faced with a choice each turn; summon spirits to use abilities and gain mana, or spend mana to build tower stories and inch closer to winning. Will you steal mana from your opponent this round and risk their wrath? Or do you play the cutest ghost card ever to save up some mana and hope no one comes for you? The mana pool is limited to just 5 of each color, so you have to plan really well.