Vilarium

Vilarium is the 6th pet in the Rainbow Egg because violet is the 6th color in the rainbow. It has a 0.0002% (1/500,000) of being hatched without any luck gamepasses, a 0.0004% (1/250,000) chance with 2x luck, a 0.0008% (1/125,000) with 4x luck, and a 0.0016% (1/62,500) with 4x luck + 2x luck boost, or it can be obtained from the 600,000 eggs prize (added in update 34).

Trivia
-11 people have obtained this pet from the prize.