Look whos back for his 3rd year

To be honest i forgot who designed him so if he looks familiar to you lemme know if you designed him! I remember he was in an auction or smth about 3 ish years ago??

Idk I bring him back every september-november!

Things to know:

Pay attention to his markings, he's piebald
Three little ghosts follow him at all times, expressions can vary
Always wears his poncho
Always wears collar

Other info:

Name: Frisk
Gender: Male
Age: ??? Dead
Species: Bat/Mutt, ghost

Appears solid, but living creatures cannot touch him and they go straight through!
Does most ghost-like things