First level of the merchant
5% discount on goods and services.
Requirements for activating the effect: buy for 500 gold, sell for 500 gold.
Second level of the merchant
Cost of goods and services -0.5% for each unit of charisma. Limit: 50%
Requirements for activating the effect: intelligence 15, charisma 15, first level of the merchant.
Third level of the merchant
Cost of goods and services -1% for each unit of charisma. Limit: 50%
Requirements for activating the effect: buy for 5000 gold, sell for 5000 gold, second level of the merchant.