Never did I expect to see anything horror-related in this capacity on a Magic card, and yet here we are
Its main purpose is to identify cards as snow for the effects of other cards that care about the supertype
Narrowness of Effect We tend not to do too narrow of effects at mythic rare for the same reason that we watch comprehension complexity: it's important for the mythic rares to be as exciting to players as possible (within the confines of what's good for the game)
It's triggered ability is brilliant as long as the creature you're blocking doesn't have an enter battlefield effect
Since its unbanning, new strong equipments (Kaldra Compleat, The Reality Chip, Colossus Hammer) have been printed and have found a home in a very solid Tier 1 deck (Hammer Time) alongside Stoneforge Mystic, without being too powerful for Modern
It isnt reprinted enough in main sets, only once in Commander Legends as a mythic