Battle Hall

The Battle Hall (Japanese: バトルステージ Battle Stage) is a facility located in the northwestern corner of the in Generation IV. The stadium is a huge , in where people walk down the catwalk to the battleground, while fans take a number of photos and the spotlights shine all over the place. There is also a red carpet on the floor, all the way from the entrance to the stadium. 
==Challenges==
The Battle Hall is unique from any other facility in the , as there are 10 battles per round instead of the usual 7, and only one Pokémon can be used in a Single Battle, meaning the battles are one-on-one. Before entering the Battle Hall, the player will be asked to select one Pokémon level 30 or higher for entry. If it is a different Pokémon from last time, the attendant will warn the player that they are using a different Pokémon, as Pokémon are used in winning streaks, and if the player uses a different Pokémon, the streak will be lost. If doing a Double Battle challenge, the player must enter two of the same species of Pokémon. When two players team up for a Multi Battle, they must both enter the same species of Pokémon.
Once the Pokémon is entered, the player will go down the runway and will have to choose from a list of types which type they want to battle. As the player uses only a single Pokémon against a variety of different opponents, their primary advantage comes from many of those opponents being significantly lower level than the player. If the Pokémon has a particularly disadvantageous type, there is a choice to be made about whether to get that type out of the way early, when the level difference is greatest and the player may be able to use it to overcome the type disadvantage, or to play other types to build up a streak without worrying as much about Pokémon of that type. As the only thing known about an opponent is one of the types of their Pokémon, sometimes that Pokémon's second type may counteract an advantage the player was expecting to have; for example, a Pokémon selecting a opponent, only to find that the -type is immune to Fighting moves.
As the player wins against each type, that type raises in rank, causing further challenges against that type to increase in level. The player gets their Pokémon fully healed, has the option to suspend or retire the current streak as well as save the most recent battle to the Vs. Recorder, then returns to the grid selection and can challenge the same type again (unless Rank 10 of that type was just beaten) or a different type, until the round of 10 battles has been completed. Each type begins at Rank 1, and increases to a maximum of Rank 10, after which no further challenges are allowed against that type. When two players team up for a Multi Battle, all types are available at Rank 10 from the start, and the players cannot challenge the same type more than once. Subsequent rounds of Multi Battles reset the grid to the same status. This effectively means that players can battle any 10 different types, out of the 17, in each round of Multi Battles.
In Single and Double Battles, opposing Pokémon's levels are determined by the formula
L = \min\left(Level_{player}, \left\lceil Level_{base} + {types \over 2} + (rank - 1) \cdot increment \right\rceil \right)
where
* Level_{player} the level of the player's Pokémon (or the highest level of the two Pokémon, in Double Battles)
* Level_{base} is the base level for opponents to start at, which is Level_{player} - (3 \cdot \sqrt{Level_{player}})
* types is the number of types, excluding the currently selected type, which have progressed to Rank 2 or higher
* rank is the rank of the currently selected type
* increment is the level increase per rank, which is {\sqrt{Level_{player}} \over 5}
The effect of the player's level on the opponents' base level (Level_{base}) and increase per rank (increment) can be seen in the following chart.
 Levels Table
Own Level	Opponent'sBase Level	Level AddedPer Rank
30 	13.5681 	1.0954
31 	14.2964 	1.1135
32 	15.0298 	1.1314
33 	15.7661 	1.1489
34 	16.5068 	1.1662
35 	17.2520 	1.1832
36 	18.0000 	1.2000
37 	18.7517 	1.2166
38 	19.5071 	1.2329
39 	20.2646 	1.2490
40 	21.0266 	1.2649
41 	21.7908 	1.2806
42 	22.5579 	1.2962
43 	23.3279 	1.3115
44 	24.1001 	1.3266
45 	24.8752 	1.3416
46 	25.6533 	1.3565
47 	26.4329 	1.3711
48 	27.2153 	1.3856
49 	28.0000 	1.4000
50 	28.7869 	1.4142
51 	29.5759 	1.4283
52 	30.3665 	1.4422
53 	31.1599 	1.4560
54 	31.9548 	1.4697
55 	32.7512 	1.4832
56 	33.5498 	1.4966
57 	34.3506 	1.5100
58 	35.1528 	1.5232
59 	35.9565 	1.5362
60 	36.7625 	1.5492
61 	37.5691 	1.5620
62 	38.3779 	1.5748
63 	39.1882 	1.5875
64 	40.0000 	1.6000
65 	40.8132 	1.6125
66 	41.6279 	1.6248
67 	42.4441 	1.6371
68 	43.2617 	1.6493
69 	44.0801 	1.6613
70 	44.8999 	1.6733
71 	45.7212 	1.6852
72 	46.5439 	1.6970
73 	47.3682 	1.7088
74 	48.1931 	1.7205
75 	49.0195 	1.7321
76 	49.8467 	1.7436
77 	50.6753 	1.7550
78 	51.5046 	1.7663
79 	52.3354 	1.7776
80 	53.1670 	1.7888
81 	54.0000 	1.8000
82 	54.8337 	1.8111
83 	55.6689 	1.8221
84 	56.5049 	1.8331
85 	57.3416 	1.8439
86 	58.1790 	1.8547
87 	59.0178 	1.8655
88 	59.8574 	1.8762
89 	60.6978 	1.8868
90 	61.5396 	1.8974
91 	62.3821 	1.9079
92 	63.2253 	1.9184
93 	64.0693 	1.9287
94 	64.9141 	1.9391
95 	65.7595 	1.9494
96 	66.6064 	1.9596
97 	67.4534 	1.9698
98 	68.3018 	1.9799
99 	69.1501 	1.9900
100 	70.0000 	2.0000
In Multi Battles, where only Rank 10 is available, opponent's levels always match the highest level of the two entered Pokémon.
Trainers at the Battle Hall use Pokémon from a different roster than that of the other facilities in the . Pokémon with base stat totals below 340 (Group 1) can appear in Rank 1-5, Pokémon with BST between 340 and 439 (Group 2) appear in Rank 3-8, Pokémon with BST between 440 and 499 (Group 3) appear in Rank 6-10, and Pokémon with BST 500 or higher (Group 4) are restricted to Rank 9-10. The same species of Pokémon cannot appear multiple times as an opponent within the same round of 10 battles unless all the possible Pokémon that can appear in a given type and rank have already been seen earlier in the round, but different stages of a single evolutionary line are allowed to appear in the same round.
:See more: List of Battle Hall Pokémon
===Gaining fans===
In the Battle Hall, the player will gain fans as their amount of Pokémon with a record and the total record increases. If the player is a female, their major fan is Winston, and if the player is a male, their major fan is Serena. They can be found in the Battle Hall lobby in with varying dialogue and getting closer to the attendant as the player manages to establish a record with more and more Pokémon: 1, 11, 31, 51, 101, 151, 251, 351, and all 475 species eligible for Battle Hall.https://www.youtube.com/watch?v=RyYC1MjEJKM
The player can also have major NPCs show up, cheering them on in the lobby. If the player's total record is over 500 in , they will get the professor's assistant. If the record is over 1,000, the player will get Johanna, and over 10,000 will get Professor Oak or Jasmine. In , if the record is over 1,000, the player will get the , , or , and over 10,000 will get Professor Oak or Whitney.
===Battle Points===
Round	Battle No.	Singles 	Doubles	Multi	Wi-fi
1 	1 to 10 	1 	1 	12 	6
2 	11 to 20 	1 	1 	12 	6
3 	21 to 30 	1 	1 	12 	6
4 	31 to 40 	2 	2 	12 	8
5 	41 to 50 	20(Hall Matron)	2 	12 	8
6 	51 to 60 	2 	2 	12 	8
7 	61 to 70 	3 	3 	12 	10
8 	71 to 80 	3 	3 	12 	10
9 	81 to 90 	3 	3 	12 	10
10 	91 to 100 	4 	4 	12 	12
11 	101 to 110	4 	4 	12 	12
12 	111 to 120	6 	6 	12 	14
13 	121 to 130	6 	6 	12 	15
14 	131 to 140	8 	8 	12 	17
15 	141 to 150	8 	8 	12 	17
16 	151 to 160	10 	10 	12 	20
17 	161 to 170	20(Hall Matron)	10 	12 	20
18+ 	171+ 	12 	12 	12 	23
====Extra Battle Points====
At the Battle Hall, the staff member next to the monitor will keep track of the player's total record, which is how many successive wins the player has earned with all of their Pokémon. For example, if two different Pokémon have both won 10 times, then the total record is 20. The player earns BP at the end of each round of 10 battles based on how far they are into the current streak, and if that streak pushes the total record across certain milestones, bonus BP will be awarded for that as well.
Total record milestones 	BP received
10 	1
30 	3
50/100/150/200/250/300/350/400/450 	5
500/600/700/800/900/1000 	10
1200/1400/1600/1800 	30
2000, and every further multiple of 500 until 10000 	50
10000, and every further multiple of 10000 until 100000	record/100
===Hall Matron===
Argenta is the Frontier Brain for the Battle Hall. She can be challenged on the 50th consecutive Single Battle, unlike all other Frontier Brains whose first challenge comes on the 21st battle. Argenta uses a Pokémon chosen from the same base stat total grouping that the player's Pokémon belongs to (339 or lower, 340-439, 440-499, 500 or higher), but otherwise chosen at random without regard for the player's selected type. Argenta's Pokémon will always match the level of the player's Pokémon, even for levels in which no other opponent's level is capable of getting that high. Once defeated, she will give away the silver commemorative print. Argenta can be challenged again on the 170th consecutive Single Battle, with the same rules; on her second challenge she will only use a Pokémon with a base stat total of 500 or greater, and will give away the gold commemorative print when defeated. 
After the player defeats Argenta for the second time and extends a streak to 170 wins, the player is allowed to continue the streak with further rounds. The grid at that point resets to be equivalent to having Rank 9 cleared in every type, and the player must then choose ten different types to challenge at Rank 10 during the following round. Once all types have been defeated again, the grid resets again to the same point, until the streak ends.
==Layout==
 	 	
Outside the Battle Hall	Inside the Battle Hall	Before battle in the Battle Hall
==In the spin-off games==
===Pokémon Masters EX===
Artwork depicting the Battle Hall is seen in 's mindscape.
{| style="background: #AB60E2; ; border: #AB60E2;"
{| style="background: #; ; border: #; padding: 0px 5px 5px 5px"
==In the manga==
===Pokémon Adventures===
In Pokémon Adventures, the challenger is allowed to choose the type of Argenta's Pokémon, unlike in the .
========
The Battle Hall first appeared in Deprogramming Porygon-Z as a part of the . In Dealing with Dragonite, was shown to have reached Argenta after 169 battles and two days without sleep. For her challenge, Platinum had chosen to use her , and in the final battle, she came face to face with Argenta's . During the battle, Platinum mused to herself how, despite knowing everything about her Froslass, whom she had once faced as her opponent when she had been under Candice's ownership, only now, after going through 169 consecutive battles with her, she had come to truly understand her.
Despite Froslass having a major type advantage over Dragonite, she still took heavy damage from the Dragon Pokémon's . However, thanks to the Babiri Berry that Platinum had given Froslass to hold before the battle, the Snow Land Pokémon was able to survive the super effective hit and defeat Dragonite with , earning Platinum her fourth commemorative print.
==In the TCG==
This listing is of cards mentioning or featuring the Battle Hall in the Pokémon Trading Card Game.
==Trivia==
* There are some Pokémon in the Battle Hall that know moves they cannot legitimately learn: a with , a with , and an with .
==In other languages==
==References==
==Related articles==
Category:Platinum locations
Category:HeartGold and SoulSilver locations
Category:Battle facilities
Category:Battle Frontier
de:Kampfsaal
es:Frente Batalla (cuarta generación)#Sala Batalla
fr:Scène de Combat
it:Palco Lotta
ja:バトルステージ
zh:对战舞台