[Help needed for the psychic]

HI everyone Jez here. 

 

I've gotten up to the psychic gym the chess based one and my team gets destoryied every time no matter what i do and i was wondering if there was any hints on how to beat it thanks my team is 

 

lvl 55 ampharos

-discharge

-charge beam

- power gem

-signal beam

 

lvl 59 gardevoir

- charge beam

- psychic 

- draining kiss

- calm mind

 

lvl 56 blaziken

- bulk up

- double kick

- blaze kick

- strengh

 

lvl 59 Honchkrow

- night slash

- brave bird

- wing attack

- roost

 

- lvl 58 excadrill

- swords dance

- metal claw

- drill run

- rock slide

 

and a 

lvl 40 sharpedo

 

- swagger

- poison and ice fang

- destiny bond

 

if there is anything this team can do to win that would help thanks