What does it mean if a Pokemon is (PU)?

Question

See, I know what the PU tier is, but what is (PU)? Is there a difference between (PU) and PU? Is (PU) Untiered? Thanks in advance.

Answer 1

Yes, (PU), in parenthesis, means untiered.

Comments

Thanks. I wonder why they don't just put "untiered" there instead lol

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Specifically, its in the format ZU.