The Battle Castle is in the south east of the Battle Frontier. The method of battling within this battle facility is that unlike the other facilities, your Pokémon do not get healed.

As usual, there are three different selections you can go in with; Single or Double Battles & Wireless Mixed. Single allows for 3 on 3 and Double allows for 4 on 4. So if you have teams primed for each particular aspect, then feel free to use your prime selection here

Once you've made your Pokémon selections, you can go on through where you get greeted by the Butler. Whenever you win battles in the battle castle, you earn Castle Points. As you cannot heal your Pokémon, you can exchange the points here for certain perks for use only within this Battle Facility, heal your HP, PP or get an item. The better choices are worth much more Castle Points so its always best to save. The items you buy and the rank ups remain throughout your streak so you do not have to keep doing it after every 7 matches. You CP total also stays throughout your streak.

The options for your own Pokémon are as follows. You also have the ability to check you're Pokémon's current stats, hold item, HP & PP in this screen;

There is also an option for you to to attach items to your Pokémon for a C.P. As items are removed from your Pokemon as you go in, its good to get these for your best competitive strategy. First here are the rank ups for the Items & Berries combined;

Function	Price	Pre-Requisite
Rank Up - One	150 C.P.	-
Rank Up - Two	150 C.P.	Rank Up - One

First, we'll cover the berries

Pic	Name	Function	Price	Pre-Requisite
	Cheri Berry	A Poffin ingredient. It may be used or held by a Pokémon to recover from paralysis.	2 C.P.	-
	Chesto Berry	A Poffin ingredient. It may be used or held by a Pokémon to recover from sleep.	2 C.P.	-
	Pecha Berry	A Poffin ingredient. It may be used or held by a Pokémon to recover from poison.	2 C.P.	-
	Rawst Berry	A Poffin ingredient. It may be used or held by a Pokémon to recover from a burn.	2 C.P.	-
	Persim Berry	A Poffin ingredient. It may be used or held by a Pokémon to recover from confusion.	2 C.P.	-
	Lum Berry	A Poffin ingredient. It may be used or held by a Pokémon to recover from any status problem.	5 C.P.	-
	Sitrus Berry	A Poffin ingredient. It may be used or held by a Pokémon to heal the user’s HP a little.	5 C.P.	-
	Liechi Berry	A Poffin ingredient. If held by a Pokémon, it raises its Attack stat in a pinch.	5 C.P.	Rank Up - One
	Ganlon Berry	A Poffin ingredient. If held by a Pokémon, it raises its Defense stat in a pinch.	5 C.P.	Rank Up - One
	Salac Berry	A Poffin ingredient. If held by a Pokémon, it raises its Speed stat in a pinch.	5 C.P.	Rank Up - One
	Petaya Berry	A Poffin ingredient. If held by a Pokémon, it raises its Sp. Atk stat in a pinch.	5 C.P.	Rank Up - One
	Apicot Berry	A Poffin ingredient. If held by a Pokémon, it raises its Sp. Def stat in a pinch.	5 C.P.	Rank Up - One
	Lansat Berry	A Poffin ingredient. If held by a Pokémon, it raises its critical-hit ratio in a pinch.	5 C.P.	Rank Up - One
	Starf Berry	A Poffin ingredient. If held by a Pokémon, it sharply raises one of its stats in a pinch.	5 C.P.	Rank Up - One
	Occa Berry	A Poffin ingredient. If held by a Pokémon, it weakens a foe’s supereffective Fire-type attack.	5 C.P.	Rank Up - Two
	Passho Berry	A Poffin ingredient. If held by a Pokémon, it weakens a foe’s supereffective Water-type attack.	5 C.P.	Rank Up - Two
	Wacan Berry	A Poffin ingredient. If held by a Pokémon, it weakens a foe’s supereffective Electric-type attack.	5 C.P.	Rank Up - Two
	Rindo Berry	A Poffin ingredient. If held by a Pokémon, it weakens a foe’s supereffective Grass-type attack.	5 C.P.	Rank Up - Two
	Yache Berry	A Poffin ingredient. If held by a Pokémon, it weakens a foe’s supereffective Ice-type attack.	5 C.P.	Rank Up - Two
	Chople Berry	A Poffin ingredient. If held by a Pokémon, it weakens a foe’s supereffective Fighting-type attack.	5 C.P.	Rank Up - Two
	Kebia Berry	A Poffin ingredient. If held by a Pokémon, it weakens a foe’s supereffective Poison-type attack.	5 C.P.	Rank Up - Two
	Shuca Berry	A Poffin ingredient. If held by a Pokémon, it weakens a foe’s supereffective Ground-type attack.	5 C.P.	Rank Up - Two
	Coba Berry	A Poffin ingredient. If held by a Pokémon, it weakens a foe’s supereffective Flying-type attack.	5 C.P.	Rank Up - Two
	Payapa Berry	A Poffin ingredient. If held by a Pokémon, it weakens a foe’s supereffective Psychic-type attack.	5 C.P.	Rank Up - Two
	Tanga Berry	A Poffin ingredient. If held by a Pokémon, it weakens a foe’s supereffective Bug-type attack.	5 C.P.	Rank Up - Two
	Charti Berry	A Poffin ingredient. If held by a Pokémon, it weakens a foe’s supereffective Rock-type attack.	5 C.P.	Rank Up - Two
	Kasib Berry	A Poffin ingredient. If held by a Pokémon, it weakens a foe’s supereffective Ghost-type attack.	5 C.P.	Rank Up - Two
	Haban Berry	A Poffin ingredient. If held by a Pokémon, it weakens a foe’s supereffective Dragon-type attack.	5 C.P.	Rank Up - Two
	Colbur Berry	A Poffin ingredient. If held by a Pokémon, it weakens a foe’s supereffective Dark-type attack.	5 C.P.	Rank Up - Two
	Babiri Berry	A Poffin ingredient. If held by a Pokémon, it weakens a foe’s supereffective Steel-type attack.	5 C.P.	Rank Up - Two
	Chilan Berry	A Poffin ingredient. If held by a Pokémon, it weakens a foe’s Normal-type attack.	5 C.P.	Rank Up - Two

You can also get specific items for use within the Battle Castle as well

Pic	Name	Function	Price	Pre-Requisite
	King's Rock	May cause opponent to Flinch	10 C.P.	Rank Up - One
	Quick Claw	The Pokémon holding this may attack first	15 C.P.	Rank Up - One
	Power Herb	Allows user to omit first turn of charge-up required moves; can only be used once	10 C.P.	Rank Up - One
	Shell Bell	User restores 1/8th of maximum HP when damage is inflicted onto the opponent	15 C.P.	Rank Up - One
	Metronome	Raises power of move if used consecutively	10 C.P.	Rank Up - One
	Light Clay	Prolongs effect of Reflect and Light Screen	10 C.P.	Rank Up - One
	Grip Claw	Prolongs number of turns of trapping attacks	10 C.P.	Rank Up - One
	Big Root	Portion of HP recovered increases when using HP-stealing moves	10 C.P.	Rank Up - One
	Toxic Orb	Induces Poison status to holder	10 C.P.	Rank Up - One
	Flame Orb	Induces Burn status to holder	10 C.P.	Rank Up - One
	Light Ball	Pikachu's Special Attack increases by x2	15 C.P.	Rank Up - One
	Thick Club	If attached to Cubone or Marowak, their Attack rises by x2	15 C.P.	Rank Up - One
	White Herb	Cures any status effect; can only be used once	5 C.P.	Rank Up - Two
	Focus Band	May prevent fainting by leaving the user with 1 HP from a KOing move	15 C.P.	Rank Up - Two
	Focus Sash	Leaves 1 HP if hit by a KOing move when HP is full	10 C.P.	Rank Up - Two
	Leftovers	HP Increases by 1/16th each turn	20 C.P.	Rank Up - Two
	Bright Powder	Raises Evasiveness	20 C.P.	Rank Up - Two
	Scope Lens	Increases chances of landing a Critical Hit	20 C.P.	Rank Up - Two
	Wide Lens	Slightly raises accuracy of moves	20 C.P.	Rank Up - Two
	Zoom Lens	Accuracy increases if user is attacked by foe first in a turn	20 C.P.	Rank Up - Two
	Choice Band	Boosts Attack by x1.5, but only allows the use of one attack until the Pokémon is called back	20 C.P.	Rank Up - Two
	Choice Specs	Raises Sp. Attack by x1.5, but only allows the use of one attack until the Pokémon is called back	20 C.P.	Rank Up - Two
	Choice Scarf	Raises Speed by x1.5, but only allows the use of one attack until the Pokémon is called back	20 C.P.	Rank Up - Two
	Muscle Band	Slightly raises power of Physical moves	20 C.P.	Rank Up - Two
	Wise Glasses	Slightly raises power of special moves	20 C.P.	Rank Up - Two
	Expert Belt	Slightly raises power of Super Effective moves	20 C.P.	Rank Up - Two
	Life Orb	Increases attack damage but decreases HP whenever you deal damage	20 C.P.	Rank Up - Two

You also have the opportunity to see your opponent's Pokémon and the specific stats regarding them. They also cost and are as follows

Once done, you go in and battle away. Like the other Battle Facilities, they are done in streaks of 7 before you can exit. Try to get the best streak you possibly can.

Once you reach a streak of 21 in the Battle Castle, when you go to have your 21sth Battle, you will be challenged by the Frontier Brain of the Battle Castle; Darach. His Pokémon's level match your own. The team he has is not the strongest you will face, but based upon your past battles, if you do not spend CP to heal, you will struggle. Beat him and you get the Silver Medal

Castle Valet Darach Streak 21	Staraptor	Empoleon	Houndoom

Continue in on the streak and continue to beat all the Pokémon. Now you have the option to skip battles for 50CP, you may be able to get through it even quicker, should you earn points wisely anyway. As always, the trainers get stronger so you have to be prepared. Once you hit your 49th battle, Darach will re-appear. Beat him to get the Coloured Medal

Castle Valet Darach Streak 49	Entei	Gallade	Empoleon