By regularly ingesting the potion made from the various unnamed jungle herbs, Kraven grants himself a number of abilities including sufficient superhuman strength, speed, stamina, agility, and reflexes to make him a physical threat to Spider-Man, though these powers are not as developed as those possessed by Spider-Man.
Even without his superhuman powers, Kraven is an Olympic-level athlete, and a gifted tactician, hunter and hand-to-hand combatant.