Vision Ward

Vision Ward is a consumable item in League of Legends. This Item costs 150 gold and places an invisible ward with 1000 range Magical Sight. The ward lasts for three minutes and gives a team vision of the map area around the ward. A champion can carry up to three vision wards at a time, but there is no limit to the number of wards that can be placed simultaneously. (ed note: confirm this.) Unlike Sight Wards, Vision Wards allow a team to see invisible champions like Twitch and invisible items like Teemo's Noxious Traps or enemy wards.