Mining and Crafting

Scattered on the map (specifically in Rookgaard and on path between Thais and Venore), you may find broken stone fragments called "rubble". You can mine iron ores from these stones once you are level 20 using a pickaxe. The higher the fist fighting, the better your mining skills! Successful mining also grants fist fighting.

With these iron ores, you can craft burning hearts or Gems at the "sword in the stone" crafting stations, which are the main crafting materials on Zamonia. 100x iron ores for 1 burning heart or Gems of your choosing, as shown in the illustration below for crafting (not necessarily up to date).

With these hearts or gems you can craft custom weapons and armory at the crafting stations.

Burning hearts are also lootable from Demons, Hellfire Fighters, Massive Fire Elementals, Diabolic Imps and Infernalists.

Gems are lootable most efficiently from:

Dragons, Hydras & Wyrms (Green)
Dragon Lords, Wyrms & Hellfire Fighters (Red)
Frost Dragons, Warlocks & Tundra Behemoths (Blue)
Dragon Kings, Fallen Heros & Grim Reapers (Violet)
Infernalists, Undead Dragons & Bogscale Drakes (Yellow)

Gems are also obtainable from the Daily Level 100 Boss "Nazgul". If you are lucky enough, you might even receive a Giant Emerald for defeating Nazgul.

Bogscale Drakes also have a chance of dropping Giant Emeralds!

Gem Hoarder "Gorvath" is particularly interested in these.
You can find him near the entrance to Edron Demons.

Hunting the mobs listed above for the crafting materials is the most profitable approach, but low levels should also be able to craft the exclusive weapons and armory only available through crafting. This is why mining for ores and crafting the burning heart or gems is an option for the weaker collectors!