Hubert's greatest ability is his exceptional intelligence: however, it is hampered by his senility. He does have more unusual "abilities" though: Since Philip I's existence is cyclical and being part of Philip I's bloodline, Hubert himself is an anomaly in the universe. Also, ever since "The Late Philip J. Fry", Hubert has become an out-of-universe observer. It is unknown how this may manifest itself in the future, but logically nothing that happens as a result of time travel in the current universe can affect him, since he is not a part of this universe.
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