Hauntwoods Shrieker's last ability considers only the characteristics of the printed card. Static abilities that affect the characteristics of permanents on the battlefield aren't taken into account. For example, if the revealed card is a noncreature artifact card and March of the Machines (an enchantment with "Each noncreature artifact is an artifact creature with power and toughness each equal to its mana value.") is on the battlefield, it won't be turned face up.