GroundPound Help (Groudon,Terrakion,Mewtwo)

[MountainDrew]

Hey Pokemon I've been having trouble with what to put in this deck. I usually dont have any problem like this but I have 5 Spaces left in the deck. So I would gladly appreciate it if you guys could give me some suggestions on what I could fill the spaces with. Thanks
Anyway heres the list:
Pokemon (8)
2- Groudon EX
4- Terrakion
2- Mewtwo EX
T/S/S (34)
4- Professor Juniper
4- Professor Oak's New Theory
3- N
3- Pokemon Catcher
1- Dual Ball
1- Revive
3- Switch
2- Pluspower
3- Heavy Ball
2- Random Receiver
4- Junk Arm
4- EXP Share
Energy (13)
10- Fighting
3- Double Colorless

 

[Flys Gone 2071]

Add another catcher another dual ball max out random receiver and add a heavy ball

 

[MountainDrew]

Add another catcher another dual ball max out random receiver and add a heavy ball

Thanks and also I forgot to write that I have an unlimited Tourny coming up is there any old cards that would work in this deck?