Golden Goblin

The Golden Goblin is a Mob that spawns from Goblin Eggs (0.5% chance), or by mining Mithril Ore (0.1% chance) in the Dwarven Mines.

Description
Golden Goblins are a rare spawn from either throwing Goblin Eggs (1/200, 0.5% base chance) or from mining any Ore in the Dwarven Mines (1/1000, 0.1% base chance), which may be increased by Luck of the Cave). It drops a base of 200 Mithril Powder when killed, this can be upgraded through the Heart of the Mountain.

When the Golden Goblin spawns, the following message will display in chat:

Golden Goblins will de-spawn after 30 seconds.

Information

 * Golden Goblins can be spawned outside the Dwarven Mines, but will only drop coins and Mithril. They will not give Mithril Powder.
 * No message will display in chat.
 * They will still de-spawn after 30 seconds.
 * Attempting to spawn a Golden Goblin on another player's island (outside your own) will cause the Goblin Egg to be lost, and nothing will happen.
 * If killed during the 2x Powder Event, it will give x2 powder. This can fill the double powder Commission.

Trivia

 * The Luck of the Cave perk from Heart of the Mountain increases the chance for Golden Goblins to spawn.
 * Hitting the Golden Goblin at least one time will grant the full amount of Mithril Powder, even if it dies afterwards to fall damage.
 * The amount of powder a Golden Goblin drops is affected by the 2x powder event. Killing a Golden Goblin while this event is active will give 400 powder, even though it does not say 400.
 * Killing 1 Golden Goblin is a possible task for Commission Slot 2 (or 4, with Peak of the Mountain level 3).
 * Using Mineral Armor with a Stonk in the Puzzler's room used to be a way to complete this quest quickly. However, this was patched when the ores in the Puzzler's room were filled with planks.
 * Golden Goblins contribute to the 200 necessary kills in the Goblin Slayer commission.