No, volcanoes and other similar objects cause me more damage :(. Perhaps "Treasure Hunter" is still better for income :).
Added 1 minute ago
By the way, about the "Mana Accelerator." It costs a bit too much (in terms of rage). And the stronger you develop it, the bigger the gap becomes. But it's really useful at the beginning :).
Цикл "Закадычные враги": "Особенное гостеприимство, "Супероружие", "Меж молотом и наковальней"
"Падение Шантири"
Кампания для "Кодекса Войны"
"Выбор Сагиттеля"