Azmaveth, Earthly Seer

When Azmaveth, Earthly Seer comes into play, you may return target Treefolk from your graveyard to your hand.
When Azmaveth, Earthly Seer dies, you
may return target Treefolk from your graveyard to your hand.
"Azmaveth protects the trees that the trees may protect him."