Emeria Shepherd

Flying
Landfall — Whenever a land you control enters, you may return target nonland permanent card from your graveyard to your hand. If that land is a Plains, you may return that nonland permanent card to the battlefield instead.

The List

Zendikar Rising Commander

Flying
Landfall — Whenever a land enters the battlefield under your control, you may return target nonland permanent card from your graveyard to your hand. If that land is a Plains, you may return that nonland permanent card to the battlefield instead.

Battle for Zendikar Promos

Battle for Zendikar

A "nonland permanent card" is an artifact, creature, enchantment, or planeswalker card.

If you return an Aura to the battlefield this way, you choose what it will enchant as it enters the battlefield. This doesn't target any player or permanent, so you could attach an Aura to a permanent with hexproof controlled by an opponent, for example. If there's nothing the Aura can legally enchant, it stays in the graveyard.

A landfall ability doesn't trigger if a permanent already on the battlefield becomes a land.

A landfall ability triggers whenever a land you control enters for any reason. It triggers whenever you play a land, as well as whenever a spell or ability puts a land onto the battlefield under your control.

Whenever a land you control enters, each landfall ability of the permanents you control will trigger. You can put them   on the stack in any order. The last ability you put on the stack will be the first one to resolve (As a result, you can have those abilities resolve in the order of your choosing.).