Fleeting Aven is a creature card from the Onslaught set of Magic: The Gathering, featuring unknown rarity. It is currently valued at $0.36 in the secondary market, reflecting its niche appeal among collectors and players. With its flying ability, this card serves strategic purposes in various decks, particularly those focused on evasion. As a part of the Onslaught block, it holds significance for fans of the set's mechanics and themes.