You mean these? They're from Smogon
The following clauses must be enabled for all Smogon Tour matches.
Select this clause when challenging for all Smogon Tour matches. This is necessary in the interest of finishing the tournament in a speedy manner.
A player cannot have two of the same Pokémon on their team. For example, a player cannot have two Koffings on his or her team.
A player cannot put two or more different opposing Pokémon to sleep using attacks that induce sleep to opposing Pokémon.
A player cannot increase their Pokémon's evasion stat with a move that specifically increases evasion. Items or indirect boosts do not break this clause.
Players cannot use moves that have a chance of instantly KO opposing Pokémon. For example, Horn Drill is an illegal move to have on a Pokémon's move set.