When Prosperity Tycoon enters the battlefield, create a 1/1 red Mercenary creature token with ": Target creature you control gets +1/+0 until end of turn. Activate only as a sorcery." , Sacrifice a token: Prosperity Tycoon gains indestructible (Effects that say "destroy" don't destroy that permanent. An indestructible creature can't be destroyed by damage.) until end of turn. Tap it.