Lonely Scarecrow

If Lonely Scarecrow is the only creature on the battlefield, it gets +1/+1.
If another creature named Lonely Scarecrow enters the battlefield, destroy all creatures named Lonely Scarecrow, there controllers each create a 3/3 White Scarecrow token named Sociable Scarecrow.
A Deck can only have one card named Lonely Scarecrow in it.