Emerson, Bard of Ages

When this is placed on the field, create a 2/2 Script token that has the ability
"All creatures on the field gain +1/+1."
While a Script token is on the field, Emerson Bard of Ages is Hexproof.
{x}{p/g}{p/g}: Sacrifice {x} land, create {x} Script tokens. Script token abilities stack.
{t}{p/g}{p/r}: Sacrifice script token, send
any creature back to its owners hand.