Sun/Moon UnderUsed Metagame Primer

• Composition
• Play Restrictions
• The UU Forum
  • Learn
  • Participate

Composition

UU (UnderUsed) is Smogon's second usage-based tier. All Pokémon that are not OU by usage and are not banned to Ubers or UUBL can be used in UU, including Pokémon from RU, NU, and PU. While any of the aforementioned Pokémon can be used in UU, only those Pokémon that make up at least ~3.41% of total weighted usage in the tier are designated 'UU.' A Pokémon is truly 'UU' if a typical competitive player is more than 50% likely to encounter that Pokémon at least once in a given day of playing (20 battles).

A list of the current UU Pokémon and those with UU analyses for the SM era are found on the dex page.

Play Restrictions

Players cannot use Pokémon from the Uber tier, OU, or UUBL.

Players must abide by the following clauses:

• Smogon-wide Clauses.

Players cannot use the following items:

• Kommonium Z
• Mewnium Z

Players cannot use the following abilities:

• Drizzle
• Drought

Players cannot use the following moves:

• Baton Pass

The UU Forum

Learn

The UU Forum Guide - Resource Thread is an A-to-Z guide on how to use the UU subforum. UU is explained in greater detail here, along with all forms of resources, projects, and tourmaments details.

The General Discussion & Trends Thread is the place to go to learn about and discuss the current metagame. Keep an eye out for threads labeled "NP" or "Now Playing" - those are suspect test announcement/discussion threads!

Participate

The UU Teambuilding Competition tests your mettle in teambuilding, challenging players to build a team around a particular Pokémon/spread while the community votes on the best build.

New to UU and rarin' to go? Snag a team from the Sample Teams thread and hop on the ladder! Sample teams a quick method of getting familiarized with a metagame, so don't be shy.

The popular conventions of a metagame only work for so long; "Next Best Thing" really forces players to push the boundaries. Come up with the next best spread and you could be featured in the hall of fame.

If you'd like to participate more, be sure to check out the Resource Thread listed above. Stay tuned to this page for more details on UU's development.