Database: card_games
Question: Please list the Italian names of the cards in the set Coldsnap with the highest converted mana cost.
SQL: SELECT T2.name FROM foreign_data AS T1 INNER JOIN cards AS T2 ON T2.uuid = T1.uuid INNER JOIN sets AS T3 ON T3.code = T2.setCode WHERE T3.name = 'Coldsnap' AND T1.language = 'Italian' ORDER BY T2.convertedManaCost DESC