Ying Su is dead.
He wasn't killed by Ye Si's mechanical puppet, but died during the battle.
Although his strength fell below Foundation Establishment, he still had a significant advantage over the mechanical puppet, which couldn't touch him at all.
Unfortunately, Ye Si had a mechanical puppet that countered him:
"Second-Turn Puppet: Steam Thunder Law Celestial Master"
"Attack Power: 11200" (enhanced value)
"Health: 11400"
"Attribute: Thunder Skill - Splash: This puppet's attacks cause 300 points of splash damage from thunder skills, dealing double damage to mechanical, corpse ghosts, and monsters."
