7-layer pyramid. Each level is shrouded in darkness, and can only be lit up by defeating opponents on the level. Trainers cannot take any items into the pyramid, and items found within can only be used while inside, being stored in a special item bag that is handed out to those who challenge it.
Wild Pokémon are encountered within the Battle Pyramid
The team lvl varies on your highest lvl pokemon
Silver team
Regirock
Explosion
Superpower
Earthquake
Ancientpower
Regice
Ice beam
Thunder
Amnesia
Rest
Registeel
Earthquake
Metal claw
Toxic
Iron defense
Gold team
Articuno
Blizzard
Water pulse
Aerial ace
Reflect
Zapdos
Thunder
Detect
Drill peck
Light screen
Moltres
Fire blast
Hyper beam
Aerial ace
Safeguard