Damage Vulnerabilities: lightning
Tunneler. Earthdrakes can move through dirt, stone, and earth, similarly to how flying beings move through air. Additionally, they take 1d4-1 radiant damage for every round they are in direct sunlight.
Multiattack. The drake makes two attacks: one with its bite and one with its claws.
Bite. Melee Weapon Attack: +6 to hit, reach 5 ft., one target. Hit: 8 (2d4 + 3) piercing damage.
Claws. Melee Weapon Attack: +6 to hit, reach 5 ft., one target. Hit: 7 (1d8 + 3) slashing damage.
Earthquake Blast. The drake exhales a 30-foot long line of force that is 5 feet wide. Each creature in that line must make a DC 13 Dexterity saving throw, taking 11 (4d4+2) force damage on a failed save, or half as much damage (rounded up) on a successful one.
The earthdrake can take 3 legendary actions, choosing from the options below. Only one legendary action option can be used at a time and only at the end of another creature's turn. The earthdrake regains spent legendary actions at the start of its turn.
Claw. Melee Attack: +3 to hit, reach 5 ft., one target. Hit: 7 (2d3 + 3) slashing damage.
Earthquake Blast. The drake exhales a 30-foot long line of force that is 5 feet wide. Each creature in that line must make a DC 13 Dexterity saving throw, taking 9 (4d4) force damage on a failed save, or half as much damage (rounded up) on a successful one.