Multiattack

One Bite attack and one Tail Whip attack.

Bite

Melee Weapon Attack: +7 to hit, 10 ft., one target, 14 (2d8+5) piercing damage.

Tail Whip

Melee Weapon Attack: +7 to hit, 10 ft., one target, 16 (2d10+5) bludgeoning damage.

Charging Swallow

Partially submerges in the ground and slithers forward scooping up soil and creatures as it goes. The soil snake moves up to 30' in a straight line and can move through the space of any Med or smaller creature. The first time it enters a creature's space during this move that creature: 14 (4d6) bludgeoning damage and is buried as it is swallowed bounced through the hollow inside of the soil snake and deposited back in its space under a pile of soil (DC 14 Dex half damage and isn't buried). A buried creature is restrained and unable to breathe or stand up. A creature including the buried creature can take its action to free the buried creature by succeeding on a DC 14 Str check.

Soil Blast (Recharge 5-6)

Expels soil in a 30' cone. Each creature in that area: 18 (4d8) bludgeoning damage and is knocked prone (DC 14 Dex half damage not prone).