
Gluttony is a poor fighter because he was designed not only to track but to dispose of evidence to keep Father's plans a secret.

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That turned the tables on Ed's group at once, even if Gluttony's powers came with a ravenous appetite. So, Pride simply ate Gluttony to obtain his sensory abilities and used that strong nose to chase down the unmistakable scent of his enemies. During a battle in a dark forest against Edward's group, Pride realized that he couldn't easily track his enemies, while his partner Gluttony could but was being overwhelmed by the Xingese warriors. What is more, Gluttony's strong nose can be borrowed by others, mainly Pride. The Xingese agents quickly realized that between Wrath's eye and Gluttony's nose, there was no way to escape or take the homunculi by surprise. During a battle with the Xingese people, Wrath needed Gluttony to track down Fu, Lan Fan and Ling Yao, then engage them in battle. He can identify any scent and track it anywhere, and even Wrath/King Bradley relied heavily on this ability. Lust can pursue leads on paper, but once the squad is out in the field, it's down to Gluttony to actually sniff them out with his strong nose, and then let Lust and Envy take care of the rest. Envy could gather intel with his shapeshifting, and Gluttony was in charge of using his nose to track down the target. In that squad, it was Lust who gave orders and pursued leads, and she was also a skilled assassin who could kill anyone with her Ultimate Spear.

Together, though, they could accomplish any mission by pooling their talents, and Gluttony had a role to play. He contrasted sharply with his squad leader, Lust, and the shapeshifting Envy. When Gluttony first appeared, he looked like an oafish villain with a plain face and a thick, lumbering body.
