Helen, Natures Guardian

Flying and Protection from Black
Whenever you play or tap a land for mana, you may pay {g} and the you create a 1/1 Green Guardian Spirit creature token with {1}{t}, Add {g}{g} to your mana pool. Whenever your opponents search for a land or destroy a land, you may pay {2} then you can search your deck for two lands and add them to your hand. If a land you control is destroyed or exiled, you create a Colorless Treasure artifact token.