Dryads
From MTG Salvation Wiki
Dryads are spirits of trees, taking a nymph-like or treefolk form to relate to the humanoids that venture near their forests. They are found on a wide array of different planes. They feature most prominently in Dominaria, Mercadia, and Ravnica.
Though it may seem unorthodox, dryads have also appeared in Mirrodin, the spirits of the copper trees of the Tangle.

