The distinction is relevant if there are no combat phases during that turn (due to Fatespinner's effect, for example) or there are multiples (due to World at War, for example)
Following it up with casting a Tauren Mauler or Predator Ooze turns it from a five-mana artifact that just gets immediately destroyed, to, effectively, a two-mana rock that can tap for a lot more
Fangren Hunter Rarity: Common TYPE: Creature SUBTYPE: Beast CMC: 5 Mana cost: USD: $0.07 EUR: 0.04 TIX: 0.03 EDHREC RANK: 30908 (4/4) Trample Farsight Mask Rarity: Uncommon TYPE: Artifact SUBTYPE: - CMC: 5 Mana cost: USD: $0.46 EUR: 0.25 TIX: 0.03 EDHREC RANK: 15311 Whenever a source an opponent controls deals damage to you, if this artifact is untapped, you may draw a card
[19] Rise Of The Floodborn [edit] Mickey finds seaweed with an evil aura, while Basil, the Great Mouse Detective, finds a secret room with an ominous-looking tome inside that was left by the sea witch Ursula
Amnesia plus Army of the Apocalypse or Zombie Apocalypse