請問這張牌的異能Second Wind

[aronlin]

Name: Second Wind
Set & Rarity: Future Sight uncommon
Printings:
Cost:
Card Type: Enchantment - Aura
P/T:
Rules Text (Oracle): Enchant creature
tap: Tap enchanted creature.
tap: Untap enchanted creature.

請問這張牌到底是橫置生物結界，還是橫置生物才會有產生後面的敘述?

[小月]

橫置生物結界