Maybe I picked a bad video. The game works actually fairly different from what I saw/read. The only way to bring something into play are the cards. There's no real base. Before the match you have to build your card deck out of 200 available cards atm. If you buy the game you get 96 cards. The rest you can buy in Booster Packs with game points which you get through winning matches. All card effects except defense buildings are instant and there are orb points spread across the map. There are 4 colors, green, red, blue and black, along with matching color orbs on the maps. To play higher level cards you have to capture orbs with the matching color to your deck.