are there healer pets?
also, if you go by the pet traders people in pokari city, there's a npc that sells pet skill scrolls
so maybe any pet will work and you just have to have it learn a healing spell
you have to be lv30 to meld pets
melded pets have 3 variations
1st melding - inherit target pet's appearance
2nd melding - 50% chance to inherit target or source pets' appearance
3rd melding - appearance mutation
not sure what appearance mutation specifies but I'm thinking maybe like a blue monkey or something (monkey + gorilla)
sounds fun though