Wang Lin/Avatar and Clones Explanation

Avatar Explanation :
Originated from the Divine Path Technique of the War Shrine Sect, the Avatar lose his limit of time during his breakthrought in Nascent Soul.

There is no primary or secondary body between the original and the avatar; both are Wang Lin. It is as if he is split in half. When they fuse, they will become the real Wang Lin.

The Avatar cultivate in the normal way while the original body sink deep into the ground to absord the spiritual energy and make his body stronger. While the Avatar is a normal human that practice inner cultivation, the main body, him, is a real Ancient God (with a poor bloodline) that focus on cultivating the body (outer cultivation).

Clones Explanation
Clones are in fact the final stage the essence comprehension. Indeed, at some point, Wang Lin could had have a clone for each essence he cultivate to the maximum. Only, he fuse them to make them stronger witch gave him the well known Slaughter Clone and another one called Five Elements. As they are clones, they are NOT other characters, they are just Wang Lin with different skills sets/powers.

Slaughter True Body :

He was given independence and sent back in time by Wang Lin to find a method in order to resurrect Li Muwan. After her resurrection, Slaughter cancelled his own intelligence and merged back with Wang Lin.
 * Lightning True Body + Slaughter True Body + Restriction True Body + Absolute Beginning True Body + Absolute End True Body = Slaughter True Body (Representing Wang Lin's lifetime of murder) (All Black appearances)

Five Elements :

True Body of Fire + True Body of Water + True Body of Earth + True Body of Metal + True Body of Wood = Five Elements True Body (Representing Wang Lin's lifetime of cultivation)