The Scope activated on attack, but it only let you look at the top card of your deck for a land card - although it could be any kind of land. One With Nature only activated whenever the equipped creature deals combat damage; however, you would be able to get any basic land card from your deck into play tapped.
This a very versatile equipment for Limited,, often giving you at least one or two free lands Who doesn't want to search land out of their deck and put them right into play? That's good in any draft or sealed deck. Plus, you get the power and toughness boost. Overall, this is a very good equipment that will definitely see some play. It probably won't see much competitive Constructed play at all, but any Commander deck that likes Equipment will definitely give this a go.