Some minions are identified as Red List. Any Methuselah may use a master phase action to mark a Red List minion for the current turn. Any ready vampire she controls may enter combat with a marked Red List minion as a +1 stealth (D) action that costs 1 blood. Each vampire can take this action only once each turn.
If a vampire burns a Red List minion in combat or as a (D) action (including diablerie), his controller may go through her library, ash heap and/or hand to get a master trophy card to put on that vampire and then reshuffle her library or draw back up to her hand size as necessary.
See the Trophy rule for more about playing Trophies.