Trifle formalizes one of the mechanics introduced in Sabbat War on the card The Coven. A Trifle is a type of master card that gives another master phase action to the Methuselah who plays it. A Methuselah may play no more than one Trifle each turn. If the Trifle is canceled (via Sudden Reversal, for example), the Methuselah does not gain the additional master phase action.