What does UU team and OU team mean?

Question

i have seen in some questions about UU team and OU team Evs ,Natures can someone explane it to me?

Answer 1

UU and OU

Underused and Overused are Tiers. Tiers seperate pokemon into battling divisions you can use a lower tier pokemon in an upper tiers but not the other way around. The official tiers on this site

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EVs

Effort Values. These greatly influence stats. Info on EVs

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Natures

These come with each Pokemon at the moment of hatching/encountering in wild battle/receiving. They influence by 10%. Details on Natures

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I hope I helped :)

Comments

You beat me by a minute and your answer was better than mine :(

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Thank you you did help :)

Answer 2

UU and OU are both different tiers that Pokemon are put into and EV's means effort values I believe there are 4 EV's in each stat

Comments

Thank you