I was considering a stuck furry speedster from the Afrikorps like a cheeta or gazel, but the likes of quicksilver from days of future past bother me as over the top gamebreaking if one can dodge bullets so I started thing of twenty people hitting once rather than one hitting twenty times. A cloning ninja not like naruto which is where the ninjutsu legend came from. Historically it was not one ninja capable of a dozen amazing feats, it was actually twelve people all dressed identical each with one specalization, the climbing expert went up the wall perfectly and left a rope for the others to come up easily behind him, then the one skilled in stealth snuck up to the guard to remove the lookout so the others could pass in the window provided, each one leapfrogging their skills like an edo-era-oceans-eleven.