tank_stats = {
'role_id': 1,
'health': 150,
'energy': 40,
'attack': 7,
'magic': 3,
'speed': 3
}
mage_stats = {
'role_id': 2,
'health': 70,
'energy': 80,
'attack': 3,
'magic': 6,
'speed': 5
warrior_stats = {
'role_id': 3,
'health': 100,
'energy': 60,
'attack': 10,
'magic': 4,
max_stats = {
'health': 300,
'energy': 150,
'attack': 20,
'magic': 10,
'speed': 10
upgrade_costs = {
'energy': 100,
'attack': 100,
'magic': 100,
'speed': 100