Gold/Silver UnderUsed Metagame Primer

• Composition
• Play Restrictions

Composition

UU (UnderUsed) is comprised of Pokémon that were considered definite "not standards" at the time that GSC was the current generation. These Pokémon were ones that were determined to not hold a sufficient enough niche that you would encounter them in a standard OU match.

A list of the current UU Pokémon and those with UU analyses for the GS 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:

• Freeze Clause Mod: If a player has already frozen an opposing Pokémon using a freeze-inducing move and that Pokémon is still frozen due to that freeze inducing move, the player cannot freeze another opposing Pokémon with a freeze-inducing move.
• Sleep Clause Mod: If a player has already put an opposing Pokémon to sleep using a sleep-inducing move and that Pokémon is still sleeping due to that sleep-inducing move, the player cannot put another opposing Pokémon to sleep using a sleep-inducing move.
• Species Clause: A player cannot have two of the same species of Pokémon on their team, based on the National Pokédex number. For example, a player cannot have two Koffing on their team.
• Evasion Clause: Players cannot use Double Team or Minimize in any of their Pokémon's movesets.
• OHKO Clause: Players cannot use Horn Drill, Guillotine, Sheer Cold, or Fissure in any of their Pokémon's movesets.
• Timer Clause: If a player exhausts the timer, they lose.
• Cleric Clause: Pokémon must be at full health and without status conditions at the start of battle.
• SleepTrap Clause: Having a sleep-inducing move and Mean Look or Spider Web on the same moveset is not allowed.