Magic Resistance. The sphinx has Advantage on saving throws against spells and other magical effects.,
Rend. Melee Weapon Attack: +5 to hit, reach 5 ft., one target.
Hit: 5 (1d4 + 3) Slashing damage plus 7 (2d6) Radiant damage.
Burst of Ingenuity (2/Day). Trigger: The sphinx or another creature within 30 feet makes an ability check or a saving throw. Response: The sphinx adds 2 to the roll.