You may remember this question from Red vs Blue.
I'll name a couple for examples:
The ability to fly, but you can only fly true North.
Super strength, but you can only when standing completely still.
[spoiler]This is inspired by Peaches Pan Tao.[/spoiler]
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The ability to survive at the deepest part at the bottom of the ocean. Does not include the ability to survive slightly above the deepest part of the bottom of the ocean.