Poison First at the Beginning? Counterattack from Slaves

Traveling to another world and becoming a slave, Mars did not panic at all. Although he did not have a golden finger, being a traveler himself was the biggest golden finger. What? The enemy has tens of thousands of soldiers? I don't know if I can block the cyclone cannon of Poxi Army. What? The enemy's cavalry rushed over? Let them see what the Great Qin Arrow Formation is. Tags: low magic cavalry, systemless lord, medieval Farming struggle