Dale Gribble, The Prepared

When Dale Gribble, the Prepared enters the battlefield or attacks create a Pocket Sand token.
(It's a colorless artifact token with "{t}, Sacrifice this
artifact: Tap target creature.")

Whenever Dale Gribble, The Prepared attacks,
you may pay {1}. If you do, you may sacrifice a
Pocket Sand token. If you do, target creature you
control gets +1/+1 until end of turn, and tap target creature.