the range of plundering is that higher level players cant plunder players with more than 16 levels lower than them. Ex: lv 101 can plunder lv 86, not lv 85

doesnt have anything related to the plunderers being lower level than you. So technically a lv 20 can plunder lv 105, but ofcourse they only do that if you are weak enough for them to plunder and get the 50 cps.