Deino (5e Creature)
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Small dragon, any alignment
Hustle. Once per turn, before the deino makes a melee attack, it can choose to take a -5 penalty to the attack roll. If the attack hits, it add +10 to the attack's damage.
Bite. Melee Weapon Attack: +4 to hit, reach 5 ft., one target. Hit: 6 (1d8 + 2) piercing damage.