Living Terrain — ruling 1

A noncreature permanent that turns into a creature can attack, and its {T} abilities can be activated, only if its controller has continuously controlled that permanent since the beginning of their most recent turn. It doesn’t matter how long the permanent has been a creature.

Living Terrain — ruling 2

This can be placed on any land, not just Forests.

Living Terrain — ruling 3

It does give the land a color and creature type, which is unlike most other ways to animate a land.

Living Terrain : règles, fonctionnement et interactions (MTG)

Living Terrain is one of those cards players keep asking about. Here is, in plain words, what its official text says, the rulings published by Wizards of the Coast, and the combos players actually run.

Official card text

Enchant land Enchanted land is a 5/6 green Treefolk creature that's still a land.

How it works : Living Terrain

Original English text — Wizards of the Coast / Scryfall

#1August 1, 2008· Wizards of the Coast
A noncreature permanent that turns into a creature can attack, and its abilities can be activated, only if its controller has continuously controlled that permanent since the beginning of their most recent turn. It doesn’t matter how long the permanent has been a creature.
No other card is named in this ruling.
#2October 4, 2004· Wizards of the Coast
This can be placed on any land, not just Forests.
No other card is named in this ruling.
#3October 4, 2004· Wizards of the Coast
It does give the land a color and creature type, which is unlike most other ways to animate a land.
No other card is named in this ruling.