# Parasitic Impetus Parasitic Impetus is a common from Ravnica: Clue Edition that appeals primarily to limited players and casual brewers rather than serious collectors. The card's modest power level and common rarity mean it holds little investment potential. Most collectors overlook it entirely, though players building around aura-based strategies or the Clue mechanic might appreciate having copies. Since it's available only in nonfoil, there's no variant hunting to drive interest. The card represents the bulk of any Ravnica: Clue Edition collection—functional filler that serves its purpose in limited formats but rarely commands attention in the secondary market or among serious card enthusiasts.