Hooktail

Hooktail is a dragon that's been terrorizing Petalburg and eating many of its residents who came to her castle to slay her, like Professor Kolorado's dad and Koops' dad. When Mario, Goombella and Koops came to her castle to obtain the first Crystal Star, the Diamond Star, they learned she got food poisoning from something that starts with cr- and ends with -icket. They learned her weakness was the sound of a cricket's chirp. Upon reaching the tower, they slayed her, but before Mario and his team can finish her off, she swallowed some of the audience members to replenish 10 of her HP. Mario and co. defeated her and freed Koops' dad, who was swallowed whole and obtained the Crystal Star, which Koops' dad found in her stomach. She has two older brothers named Bonetail and Gloomtail. Bonetail resides in the bottom floor of the Pit of 100 Trials and Gloomtail guards a key in the Palace of Shadow, respectively. The two have the ability to inflict status ailments with their breath, and additionally, Gloomtail is able to charge up for his double-strength "Megabreath" attack, and Bonetail is able to heal himself at will.

Stats
HP: 30 (Has 20 HP, but eats some of the audience members to replenish 10 HP), Attack: 5, Defense: 1

Tattle: That Hooktail! It'll stomp and munch on you, and it has a more dgragonish attack: stinky, fiery breath! It's tricky, especially when it's losing, and it'll try to fool you into being merciful. Oh, yeah, and one more thing. It hates things that start with "cr" and end with "icket". Supposedly, there's something related to that somewhere in this castle. Did we find it?