Today is the big day! Team leaders in Monsterland will choose their teams to go infest dungeons and castles. Will you pick the best team? Players must play tiles face down. If a player forms a line of four tiles is allowed to reveal one tile; when tiles are over, players choose a row and a column to score points: the monster leader with the most powerful team is the winner... but be careful! Some heroes are trying to infiltrate Monsterland to put a spoke in your wheel! Mostrilli is a tile placement involving a bit of memory and basic strategy.