Duosi

King of the Bald Dragon Ravine — offers Meng Huo the perfect refuge: one road barricaded, the other guarded by serpents, malaria, and the four deadly springs (Dumb, Destruction, Black, Weak) that only Ma Yuan ever passed. When the Shu army camps before him unpoisoned, his hair stands on end — 'these are not human soldiers; they must be sent from Heaven' — and Yang Fang's grip ends his war at the banquet.

Given the first line of defense at Three Rivers with its ten-bolt poisoned crossbows — and slain in the melee when the earth-ramp built in one night puts a hundred thousand men on his wall.