Haironette (Control Element) Psychic Island
Owlesque (Hoax Element) Faerie Island
Dimetrophone (Dinosaur Element) Bone Island
Chocolka (Candy Element) Light Island
O̶n̶i̶n̶e̶r̶v̶i̶n̶g̶ ̶(̶E̶v̶i̶l̶ ̶E̶l̶e̶m̶e̶n̶t̶)̶ ̶M̶a̶g̶i̶c̶a̶l̶ ̶S̶a̶n̶c̶t̶u̶m̶
^
The reason why Oninerving is unlikely because Magical sanctum will likely not get paironormal
Dimetrophone would look like the dimetrodon skeleton found on bone Island but it is literally alive and has skin looks like dimetrodon with a saxophone plays a distorted saxophone
Dimetrophone major form is it turns into skeleton version which definitely resembles the dimetrodon fossil found in bone Island but it's head it has green crystals growing on its head and plays a unnerving low pitch saxophone
Chocolka resembles violet with one eye wearing a blue suit she is Percussionist with distorted Taiko drum playing from her bubblegum popping
Major version turns violet into a blueberry basically a female monster with a spherical body and she's blue skin too playing fast battle like Taiko drums sound
That's my prediction
Here's what best breeding combos could
Be
Plinkajou + Banjaw = Dimetrophone
Blow't + Tootoo = Chocolka