Multiattack

Two Bites. Can replace one attack with Gut Rip.

Bite

Melee Weapon Attack: +6 to hit, 5 ft., one creature,. 14 (2d10+3) slashing damage + 5 (2d4) necrotic and knocked prone or pushed 5 ft. away the scarab's choice (DC 14 Str negates prone/push).

Gut Rip

The ruin scarab tears into one prone creature within 5 ft. of it. The target takes 11 (2d10) slashing damage and 5 (2d4) necrotic and is incapacitated for 1 min (DC 15 Con half damage and isn't incapacitated). An incapacitated creature can re-save at end of each of its turns success ends effect on itself.