(Note: Jaws of Stone doesn't count as Jaws' spray damage effect works just the same on an enchanted creature as it would on two creatures.) Because there are so few ways to deal with them, Auras are particularly prime for play in Shadowmoor Limited
If Torpor Orb and a creature enter the battlefield at the same time, that creature entering the battlefield won't cause triggered abilities to trigger
Does a Morph Creature Have Summoning Sickness
Its a very good creature for its mana value, and you can break it in so many ways, even competitively
With a few upgrades, like Doubling Season or Parallel Lives, you can assemble an army of Squirrels in no time
Its toughness is its loyalty, and that value is modified appropriately as the enchanted creature is dealt damage