Database: card_games (difficulty: simple)
Question: Tell the Portuguese (Brazil) name of the set which card "Fellwar Stone" is in it.
SQL: SELECT T2.translation FROM cards AS T1 INNER JOIN set_translations AS T2 ON T2.setCode = T1.setCode WHERE T1.name = 'Fellwar Stone' AND T2.language = 'Portuguese (Brazil)' AND T2.translation IS NOT NULL