Earth Glide. The elemental can burrow through nonmagical, unworked earth and stone. While doing so, the elemental doesn't disturb the material it moves through.

Manipulate Earth. The elemental is able to target an area of loose earth and instantaneously excavate it, move it along the ground, and deposit it up to 5 feet away. This movement doesn’t have enough force to cause damage. If the dirt or stone you target is on the ground, you cause it to become difficult terrain. Alternatively, it can cause the ground to become normal terrain if it is already difficult terrain. This change lasts for 1 hour.

Multiattack. The elemental makes one tail and two claw attacks. Alternatively, if the target has been knocked prone the Earth Wyvern can take a bite attack.

Tail. Melee Weapon Attack: +9 to hit, reach 10 ft., one target. Hit: 14 (3d8 + 7) bludgeoning damage. If the tail hits the target must make a DC 16 Dexterity or Strength(player choice) saving throw or be knocked prone.

Claw. Melee Weapon Attack: +8 to hit, reach 5 ft., one target. Hit: 10 (2d8 + 7) slashing damage.

Bite. Melee Weapon Attack: If the target is prone +9 to hit, reach 5 ft., one target. Hit: 13 (2d10 + 8) piercing damage. If the bite hits the target must make a DC 17 Constitution saving throw or be paralyzed until the end of the Wyverns next turn.

Sand Breath(Recharge 5–6). The wyvern exhales sandstorm in a 15-foot cone. Each creature in that area must succeed on a DC 17 Constitution saving throw or be blinded. The target can make the save again at the end of its turn. Additionally, on a failed save the target takes 4d6 piercing damage.

Earth Heal. Buff: Heal 10 hp