Rules
The rule for this is simple: all effective multipiers of types are doubled.
examples: Fire would do 4x against Grass instead of 2x
Grass would do .25x against Fire instead of .5x
Fire would do 8x against Bug/Grass instead of 4x
Fire would do .125x against Rock/Water instead of x.25
Bans
all OU bans take effect. dual-type moves are banned
The rule for this is simple: all effective multipiers of types are doubled.
examples: Fire would do 4x against Grass instead of 2x
Grass would do .25x against Fire instead of .5x
Fire would do 8x against Bug/Grass instead of 4x
Fire would do .125x against Rock/Water instead of x.25
Bans
all OU bans take effect. dual-type moves are banned