Contrary to popular belief, the Pachy actually better to knockout tames than the Equus. The Pachy induces more torpor per hit than the Equus and the Pachy also attacks over 15% faster. For added knowledge the Packy is also better than the Mantis (with bats), Pulmonoscorpius, and the Beelzebufo. As long as the Pachy is high level with melee damage pumped into it, it will beat any of the creatures I've mentioned with the same level and melee.