All permanents on the battlefield (Sakashima of a Thousand Faces as a copy of Sam).
Viridian Longbow attached to Shelob.
Shelob does not have summoning sickness.
Steps
Activate Shelob by tapping it, dealing 1 damage to Sliver Queen.
Sliver Queen dies as a state-based action due to Shelob's deathtouch, triggering Shelob, creating a token copy of Sliver Queen that is a Food artifact.
Activate the Sliver Queen token by paying ({0} magic symbol) , creating a 1/1 Sliver creature token.