Oracle of Seasons
This type of Moblin appears in the Woods of Winter.
During Link's quest, he can meet an Old Man located one screen south of Gnarled Root Dungeon. He is found during the Summer when the water has receded, revealing a staircase. As soon as Link speaks with the Old Man, this triggers the side quest to acquiring the Red Ring. Four Golden Beasts will appear throughout the Overworld. One of these beasts is the Golden Moblin and it will appear just outside the entrance to Snake's Remains.
The Golden Moblin is a significantly stronger version of a standard Moblin. Since it is only encountered during Autumn, and the default season of this part of the woods is Summer, Link will have to wait until he has the power of Autumn in his Rod of Seasons before he can encounter the Golden Moblin.
Breath of the Wild
"With brutal strength and extreme resilience, this type of Moblin somehow surpasses Silver Moblins in sheer power. It is said they are actually Silver Moblins who mysteriously transformed after being struck by lightning. Perhaps that is why they have such a high tolerance for electric attacks."
This type of Moblin appears exclusively within Master Mode, and has more HP than its Silver counterpart. It attacks rapidly, and often carries powerful, Moblin-crafted weapons, such as the Dragonbone Moblin Club. Upon death, they may drop some Moblin parts, in addition to a selection of rare gemstones.