Adv Troop March Speedup is a must-have PvP item (20+ used per BoG/server war); Store price 1,000 gems each -- get it free via events. Best free method: Gather Troops Event Day 4 Defense Force (up to 51 pcs) by building traps Lv6+ (needs Trap Factory Lv26+): 1,000 traps = 1, 2,000 = 3, 3,000 = 5, 4,000 = 7, 5,000 = 9 (25 total), 10,000 = 11 (36 total), 50,000 = 15 (51 total). Golden Refining Event Cultivate Generals (up to 40 pcs): cultivate 10/30/80/150 times -> 1/2/3/4 pcs (10/day over 4 days). Crazy Eggs: smash 12-hammer Minamoto no Yoshitsune egg -> 4+/day if lucky. Less efficient: Trade Products Event -> 2 pcs; Dwarf's Lucky Apple Blessing -> 10 if lucky; Viking Challenge lucky; Wheel of Fortune lucky. Comment: Gather Troops may have been replaced by War Preparation. For a bot, the March Speedup is a PvP consumable -- build traps during Gather Troops and cultivate generals during Golden Refining to stockpile it free.
Original research source: Evony Guide Wiki