Larissa and Elio

Scent: Dusk and Dawn 

Type: Fusion (Illegal) 

Types: Unicorn (rare), Bat (rare) 

Subtype: Pollution (rare) 

Traits: 

Uncommon: 
Gradient smoke tail
Special shaped candles
Fetlocks 

Rare: 
Two smoke tails 

Mythical: 
2 head mutation
Third eye mutation x2

It is rumored that these scented ponies are the result of soul mates in another life refusing to be separated, even in rebirth. Thus, they came back into the mortal world in a form where they would never be apart.