Rengar vs Karthus — laning phase
find Rengar expertsAggregated laning stats unlock at 8 Diamond+ games for a matchup - 7 games so far. Meanwhile, watch them:
WScrubNoob9/5/9ChallengerWNattyNattLoL17/3/5GrandmasterWsssshiina114/6/12ChallengerWsssshiina121/12/5ChallengerWsssshiina117/6/6GrandmasterWsssshiina17/14/9GrandmasterWsssshiina113/10/7Grandmaster
all Rengar vs Karthus on the champion page