Alfador

Alfador is an arctic demon hellhound from the underworld that Spectra summoned for her long lost son Magus, she summoned him and sent him to Magus on Crown Reef as his personal guard dog.
Magus not sure why the stranger sent him a guard dog, but Alfador sure remembered him as it was his first pet. The dog is mainly loyal to Magus and Magus can summon him whenever he wants since his grimoire is connected to the underworld, so he's able to summon him from his grimoire or by using a pamp circle with Alfadors signia on it.

Despite Alfador summoned to guard him, Magus mostly Summons him to protect Sandoki and Artisan, other times they do tend to play with as Magus has very faint memories of playing with an animal. Alfador is fiercely loyal and will attack anyone when summoned to Alfadors side and being from the underworld, he can never age or die. Alfador tends to follow Magus around and despite its looks, can be real sweet, but only to Magus.

Alfador also tends to play with Sandoku or Artisan as they've always wanted a pet and Magus was looking out for them amd with Alfador guarding them, he can use full magic attacks without worrying about the ponies getting in the impact. Alfador also tends to be friends with the Ragtag Rogues on Magus' orders.

As he's from the underworld, his pamp Fang and Gel Claw can be very painful as it turns you into a pump critter and can potentially damage plate holders. He loves belly rubs the Rogues never have to worry about picking up after him. The ponies tend to give him belly rubs while Magus scratches behind his ears. Magus can even use his Meido without worrying for Alfador as he can summon him anytime as his weapon is from the Underworld as well.

Hurting or upsetting Magus and Alfador will summon himself to either defend or aid his master, despite Magus' mask it can tell where he is with very heightened senses. It's loyalty knows no bounds and Magus is happy to have a pet that doesn't even need to eat. Sandoku and Artisan also play fetch with him while Magus gets to ride him, the other ragtah Rogues need to ask Magus if they can play with or ride him.