Create a superpower that is useful, but only in certain situations and/or on a very small scale.
For example: I have the power to make sparks when I snap my fingers, as though they were a flint and steel.
Gus Sorola has the power to corrode metal over several years simply by touching it.
Impress and underwhelm me, flood.
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BEGINNING TRANSMISSION: (Low melodious hum.) Grow your ears one centimeter for two seconds, every half hour. ENDING TRANSMISSION: