Slam (Extended or True Form Only)

Melee Weapon Attack: +5 to hit, 5 ft., one target, 6 (1d6+3) bludgeoning damage.

Snap Back (Extended Form Only)

Violently returns to its true form. Each creature within 5 ft. of it: 4 (1d8) thunder or 9 (2d8) if catterball has extended its reach to 15 feet and is deafened for 1 min (DC 12 Dex half damage not deafened). A deafened creature can make a DC 12 Con save at the end of each of its turns success ends effect on itself.