tier 1: swordsman(none upgrade) 10 money archer (none upgrade) tier 2: axeman (swordsman upgrade) 20 money knight (swordsman upgrade) marskman (archer upgrade) warlock (archer upgrade) tier 3: lumberjack (axeman upgrade) 30 money hammerman(axeman upgrade) paladin (knight upgrade) gladiator (knight upgrade) ranger (marskman upgrade) sniper (marskman upgrade) wizard (warlock upgrade) magician (warlock upgrade)
