emerald abiltity additions not working?

[legendary pkm master]

im searching for a shiny magikarp and im at sootopolis and pokemon dont come up alot so i put metwo and trapinch in my party to make wild pokemon come up more often. (pressure + area trap)

but this dont really work cuz i dont encounter alot of pokemon and theres no difference

can someone explain

 

[GetThunderStruck]

Area trap makes pokemon not run away in the desert.

and..


I wasn't aware that Pressure had a second ability...

 

[WhiteWizard42]

they have to be in the first slot of your party to have an effect.

 

[legendary pkm master]

o r u serious thanks