I think any descendent of reindeers have blood that hurt the descendants of Santa. But if they drink the blood from a reindeer that they’re ‘partners’ with (I guess it’s a hereditary thing), they’ll heal in an instant.So regular reindeer blood burns him and I guess the hybrid blood heals or is it specifically drinking the blood?
Ever heard of glass shotgun shells?How are you meant to shoot the bullet if it simply shatters from a small fall?