yes, the santa spirit boss spawns in saliko. If you fight it, the MVP gets a Christmas Cane. The Christmas Cane does not bind, so if the MVP already has the pet, they can give it to someone else, or sell it. Once you've obtained a Christmas Cane you can give it to the santa spirit boss the next time it spawns and it becomes your pet (but it may try to kill you before it decides it likes you, so not recommended for lower levels to try to tame it alone!)