The battlers are on a solid platform in the middle of a giant bowl filled with delicious broth. No move restrictions at all, because you can safely go seismetoad on the platform and there is plenty of broth to swampert your enemies with. In the soup, there is one of each letter unown floating in around aimlessly. They are all close enough to pick up, and a battler may use one action each round (they can't just use three unowns) to use any move that begins with that letter. Once an unown is used, it cannot be used again.
What a miserable place, this is. All this arena consists of is a plain, clear platform surrounded by a soup-like lake with a sky that looks surreally dark. It's almost as if this were some strange pocket dimension formed specifically for battlers.
Which brings up the question of why I'm here...
I guess it started a day ago when I looked on the bulletin board at the town forum and saw two notes, one seemingly in response to another.
C$FP said:1v1 NFE in Unown Soup, no recoveries/chills, 1 day DQ
shinyskarmory said:^^CHALLENGE ACCEPTED
no items
all abilities
404 switch error
I obtained directions to where the arena would be from a local barkeep. The next morning, I left the manor (silently, as to not wake Lenneth) and followed the instruccions to a tee. Somehow, I ended up lost in the forest on the outskirts of town, and then... I woke up here. At the very least I have some form of companion with me.
"Taikai, come on out!"
The Wingull escapes from its Poke Ball and squawks loudly. Using its Keen Eye, it observes the trainers approaching from opposite ends of the arena, seemingly appearing from nowhere...
"Sqawrk!"
Taikai warns me of what I already see, the two trainers heading towards each other. I assume that they were the two posters in the forum and, thus, came here for a Pokemon battle.
One trainer was extremely confident and seemed to have an obsession with Steel-types. Surprisingly, he brought this Pokemon:

Axew [Axew] (Male)
Nature: Adamant (+ to Attack; - from Special Attack)
Type: Dragon
Dragon: Dragon STAB; more in touch with legendary or special auras in arenas. Able to use Thrash without losing focus.
Abilities:
Ability 1: Rivalry
Type: Innate
This Pokemon has a primal response to competition and mating, increasing the Base Attack Power of all its attacks by two (2) when it attacks an opponent of the same gender in the same Egg Group, and decreasing the power of all its attacks by two (2) when it faces an opponent of the opposite gender in the same Egg Group (Monster/Ground are used for Nidorina/Nidoqueen).
Ability 2: Mold Breaker
Type: Innate
Whenever this Pokemon attacks, it emits an invisible, blindingly quick pulse preceding the attack that disables the opponents natural abilities (e.g. Levitators plummet towards the ground before Earthquake hits, Volt Absorb will not absorb electric attacks, Clear Body does not prevent stat-drops, etc.)
Ability 3 (DW): Unnerve
Type: Innate
The Pokemon's presense causes immense tension in the opponent, preventing them from eating a held Berry. Natural Gift may still be used.
Stats:
HP: 90
Atk: Rank 4 (+)
Def: Rank 2
SpA: Rank 1 (+)
SpD: Rank 2
Spe: 57
Size Class: 1
Weight Class: 2
Base Rank Total: 13
EC: 0/9
MC: 0
DC: 0/5
Attacks:
Scratch
Leer
Assurance
Dragon Rage
Dual Chop
Scary Face
Slash
False Swipe
Counter
Endure
Night Slash
Roar
Dig
X-Scissor
Moves: 14
The other seemed less confident than the first and carried in tow his own Pokemon:

Scratchet [Pontiac] (M)
Type: Normal/Fighting
Normal STAB; adapt comfortably to any surrounding after 3 actions. Able to use Outrage without losing focus.
Fighting STAB; ignore weight restrictions of throwing/grappling moves. Superior reaction time in close quarters.
Abilities:
Scrappy: (Innate) This Pokemon’s Normal and Fighting attacks carry a special signature that can damage Ghosts, even if they have phased out.
Prankster: (Innate) The Pokemon is always prepared for engaging in sneaky tactics and trickery, giving its non-damaging attacks an increase in priority level.
Vital Spirit (DW): (Innate) (Locked) This Pokemon has a high vitality and alertness making it immune to sleep induced by other Pokemon. Its normal state of sleeplessness makes it take 1 less damage/action from Ghost Curse. If it is put to sleep by a Pokemon with Mold Breaker it will wake up the next action.
Stats:
HP: 90
Atk: Rank 3
Def: Rank 3
SpA: Rank 1
SpD: Rank 3
Spe: 40
Size Class: 1
Weight Class: 2
Base Rank Total: 14
EC: 0/6
MC: 0
DC: 0
Moves (11)
Level Up
Fury Swipes
Harden
Focus Energy
Rock Smash
Roar
Egg Moves
Baton Pass
Roost
Stealth Rock
TMs
Focus Blast
Grass Knot
Retaliate
Total Moves: 11
I shout to the trainers and get their attention.
"If what I know about this place is true, we can only leave once your battle is finished. I'll be your referee, but be swift with this battle. I'd prefer to leave this unsettling place as soon as possible."
In hindsight, I should have just woken up Lenneth and had her come along. This may take awhile...
C$FP orders first