i noticed i wasn't doing as much dmg as i thought i should, so i checked if rengar, his items, or his runes got nerfed
then checked to see if scrubnoob changed his runepage. he did. he takes electrocute instead of fleet now. also future market, presumably for the guaranteed first back tiamat
a change of 3 lethality doesn't seem like it should have much impact, but apparently so.
maybe i was just rusty and this is confirmation bias tho. hadn't played in a month