Hold Breath: The Sandwarped Ssurran can hold its breath for 15 minutes. 

Intellect Fortress: The Sandwarped Ssurran's AC includes its Intelligence modifier

Elemental Demise: When the Sandwarped Ssurran dies, its body turns to stone, leaving behind only the equipment the Sandwarped Ssurran was wearing or carrying. If the Sandwarped Ssurran was killed by a Melee weapon attack, the weapon is partially stuck inside the statue until it is yanked free by an action. The statue then crumbles into sand. 

Longsword: Melee weapon attack, +4 to hit, reach 5ft, one target. Hit 6(1d8+2) slashing damage or 7(1d10+2) if used with two hands. 

Leaping Charge: As a bonus action, the Sandwarped Ssurran can move 25ft straight toward one hostile creature and makes a Melee weapon attack. This movement speed is not affected by difficult terrain. On a hit, the target takes an extra 4(1d8) slashing damage.