Earthen Halo

You call upon the land beneath you, causing a halo of floating stones and roots to orbit your body. You gain +1 AC until concentration ends. While active, if you take damage from a melee attack, you can cause a stone shard to lash out, dealing 1d4 bludgeoning damage back. At higher levels, reflected damage increases by 2d4

Roots, bark, and small motes of golden dust rotate slowly around caster, like a miniature ecosystem in orbit.