I used a lot of different teams, might post the ones that got me Gold Symbols if I remember them...
Pyramid:
Slaking (F) ** Liza
Trait: Truant
Flawless Att / Def / Spd
EVs: 6 HP / 252 Att / 252 Spd
Nature: Adamant
- Return
- Earthquake
- Shadow Ball
- Aerial Ace
Starmie ** Zed
Trait: Natural cure
Flawless Sp.att / Spd
EVs: 6 HP / 252 Sp.att / 252 Spd
Nature: Modest
- Psychic
- Surf
- Thunderbolt
- Ice Beam
Blissey (F) ** Cabey
Trait: Natural cure
Flawless Sp.def
EVs: 252 HP / 252 Def / 6 Sp.def
Nature: Bold
- Aromatherapy
- Seismic Toss
- Thunder Wave
- Softboiled
Used those for the Gold round, at least. Used a few others for some earlier rounds, including the following.
Houndoom (M) ** Toad
Trait: Flash Fire
Flawless Sp.att / Spd
EVs: 6 HP / 252 Sp.att / 252 Spd
Nature: Modest
- Protect
- Roar
- Flamethrower
- Crunch
Lapras (F) ** Jojo
Trait: Shell Armor
Flawless HP / Sp.att
EVs: 189 HP / 153 Def / 64 Sp.att / 104 Sp.def
Nature: Modest
- Psychic
- Surf
- Thunderbolt
- Ice Beam
No hold items as they are not allowed to be used, other than those that are found in the Pyramid.
Pike:
Slaking (F) @ Choice Band ** Liza
Trait: Truant
Flawless Att / Def / Spd
EVs: 6 HP / 252 Att / 252 Spd
Nature: Adamant
- Return
- Earthquake
- Shadow Ball
- Aerial Ace
Starmie @ Brightpowder ** Zed
Trait: Natural cure
Flawless Sp.att / Spd
EVs: 6 HP / 252 Sp.att / 252 Spd
Nature: Modest
- Psychic
- Surf
- Thunderbolt
- Ice Beam
Blissey (F) @ Leftovers ** Cabey
Trait: Natural cure
Flawless Sp.def
EVs: 252 HP / 252 Def / 6 Sp.def
Nature: Bold
- Aromatherapy
- Seismic Toss
- Thunder Wave
- Softboiled
Same as my Gold Pyramid Team. Blissey is awesome both in Pike and Pyramid as it can heal itself and the rest of the team outside battle.
Again, those were for the Gold Round. For rounds 1-8, I used this instead of Slaking:
Salamence (M) @ Scope Lens** Brutus
Trait: Intimidate
Flawless Att / Spd
EVs: 6 HP / 252 Att / 252 Spd
Nature: Adamant
- Earthquake
- Dragon Dance
- Rock Slide
- Aerial Ace
Arena:
Heracross (M) @ Focus Band ** Brave
Trait: Guts
Flawless Att / Spd
EVs: 6 HP / 252 Att / 252 Spd
Nature: Adamant
- Rock Slide
- Earthquake
- Brick Break
- Megahorn
Starmie @ Petaya Berry ** Ralhix
Trait: Natural cure
Flawless HP / Sp.att / Spd
EVs: 6 HP / 252 Sp.att / 252 Spd
Nature: Modest
- Recover
- Surf
- Thunderbolt
- Ice Beam
Salamence (M) @ Leftovers ** Brutus
Trait: Intimidate
Flawless Att / Spd
EVs: 6 HP / 252 Att / 252 Spd
Nature: Adamant
- Earthquake
- Dragon Dance
- Rock Slide
- Aerial Ace
Tried with a Gardevoir instead of Starmie, but failed horribly while Starmie was a great success.
Dome:
Slaking (F) @ Choice Band ** Liza
Trait: Truant
Flawless Att / Def / Spd
EVs: 6 HP / 252 Att / 252 Spd
Nature: Adamant
- Return
- Earthquake
- Shadow Ball
- Aerial Ace
Starmie @ Brightpowder (might have been something else, not sure) ** Zed
Trait: Natural cure
Flawless Sp.att / Spd
EVs: 6 HP / 252 Sp.att / 252 Spd
Nature: Modest
- Psychic
- Surf
- Thunderbolt
- Ice Beam
Shedinja (cannot remember item) ** Faith
Trait: Wonder Guard
Flawless Att
EVs: 252 Att / 6 Sp.att / 252 Spd
Nature: Adamant
- Swords Dance
- Return
- Shadow Ball
- Silver Wind
Used Shedinja since it is immune to all of the moves Tuckers Pokemon have.
For rounds 1-4... I think, I used a Heracross instead of Slaking... not sure which one but one of these two:
Heracross (M) @ Salac Berry ** Set
Trait: Swarm
Flawless Att / Spd
EVs: 6 HP / 252 Att / 252 Spd
Nature: Adamant
- Rock Slide
- Endure
- Reversal
- Megahorn
Heracross (M) @ Choice Band ** Brave
Trait: Guts
Flawless Att / Spd
EVs: 6 HP / 252 Att / 252 Spd
Nature: Adamant
- Rock Slide
- Earthquake
- Brick Break
- Megahorn
Also used a Salamence instead of Shedinja for Rounds 5-9...
Salamence (M) @ Lum Berry ** Brutus
Trait: Intimidate
Flawless Att / Spd
EVs: 6 HP / 252 Att / 252 Spd
Nature: Adamant
- Earthquake
- Dragon Dance
- Rock Slide
- Aerial Ace
Palace:
Salamence (M) @ Lum Berry ** Brutus
Trait: Intimidate
Flawless Att / Spd
EVs: 6 HP / 252 Att / 252 Spd
Nature: Adamant
- Earthquake
- Dragon Dance
- Rock Slide
- Aerial Ace
Starmie @ Petaya Berry / Brightpowder ** Ralhix
Trait: Natural cure
Flawless HP / Sp.att / Spd
EVs: 6 HP / 252 Sp.att / 252 Spd
Nature: Modest
- Recover
- Surf
- Thunderbolt
- Ice Beam
Regice @Leftovers
Trait: Clear body
No Flawless but Outstanding Def
EVs: 254 HP / 144 Def / 68 Sp.att / 44 Sp.def
Nature: Bold
- Ice Beam
- Thunderbolt
- Thunder Wave
- Rest
Have actually written down the battle for this one as well, if anybody should be interested.
Have not obtained the Gold Symbols from the Factory and Tower yet. Tried many times, but always failed.
Cannot remember any of my teams for the Silver Battles, but I know that the teams I used for them were not as professional as the Gold teams.