Bite - Giant Toad

Monster Manual - 5e, D&D Basic Rules

Bite. Melee Weapon Attack: +4 to hit, reach 5 ft., one target. Hit: 7 ( 1d10 + 2 ) piercing damage plus 5 ( 1d10 ) poison damage, and the target is grappled (escape DC 13). Until this grapple ends, the target is restrained, and the toad can’t bite another target.