List of resource producing heroes

Her name	Hero class	Resource	Amount per day
Aine	Wizard	Gold	350 per day
Caitlin	Cleric	Gold	350 per day
Clavius	Death Knight	Gold	350 per day
Damacon	Overlord	Gold	350 per day
Gelare	Elementalist	Gold	350 per day
Grindan	Elementalist	Gold	350 per day
Jenova	Ranger	Gold	350 per day
Nagash	Necromancer	Gold	350 per day
Octavia	Demoniac	Gold	350 per day
Valita	Ranger	Gold	350 per day
Calid	Heretic	Sulfur	1 per day
Rissa	Alchemist	Mercury	1 per day
Saurug	Battle Mage	Gems	1 per day
Sephinroth	Warlock	Crystal	1 per day
Lord Haart	Knight	Gold	5% bonus per level on Estates skill
General Kendal	Knight	Gold	5% bonus per level on Estates skill

Comments

The percent bonus on Estates is overall a weaker specialty than the flat 350 gold bonus. Estates itself brings 125, 250, or 500 gold. To obtain 350 gold from the specialty bonus (independently of the gold produced by the Estates skill itself), a character needs to produce 280% of the Basic value. Since each greater skill level double the income, this becomes 140% of the Advanced value or 70% of the Expert value; meaning that if the character isn't at least level 14 with Expert Estate the fixed income of 350 is more interesting.

It can be a good idea to equip the resource-producing hero with resource-producing artifacts such as the components of the Cornucopia, the Endless Purse/Bag/Sack of Gold, and the Inexhaustible Carts of Lumber and Ore. This way, Heroes with specialties and skills more focused on combat or exploration have their skills and artifact slots freed.