I have one. It is similar to the Dark Crystal cavern but revamped in my style. @Jan @Caz Tell me if this is any good . I believe it can be abused totally by Darkrai Perfection of pokemon desolation and Yveltal.
ABSOLUTE DARKNESS:
"Darkness totally consumes the arena"
Created by Yveltal in 2 turns.
Normal-type pokemon may get corrupted into Dark-type in 2-3 turns and receive damage for 1/8th max HP at the end of every turn. (IS THIS EVEN POSSIBLE??)
"Painful dark aura tortures the pokemon".
Dark void gains priority and never misses.
"[pokemon] was plunged into the darkness"
Dark type attacks are boosted by 1.75x.
"The attack spreads through the darkness"
Night Daze is boosted further by 1.1x(totalling 2x)
"The darkness powered up the attack"
Ghost type attacks are boosted by 1.5x
"The unseen aura powered up the attack"
Weathers can never exist.
"The darkness is everlasting"
Fairy-type moves decrease in power by 0.25x
"The dark aura suppressed the attack"
Dazzling gleam and Light of ruin increases in power by 6x(totalling 1.5x) and harshly decreases accuracy.
"The harsh light nullified the darkness"
Pokemons with the ability Dark aura and bad dreams are not affected by dark type attacks.
"The darkness is their abode"
Abilities like Justified, Inner focus and Fairy Aura are disabled.
Rest, Solar beam, Solar Blade, Moonblast, Moongeist beam, Moonlight, Morning Sun fail indefinitely.
"The darkness absorbed the attack"
Miracle Eye boosts accuracy and evasion by 10%,makes the user immune to side-effects of darkness and protects the user from priority moves.
"The eye can see through everything".
Dream Eater, Aura Sphere, Mystical Fire, Hyper Beam, Sacred Fire, Sacred Sword, Focus Blast and Prismatic Laser become Dark-type and increase in power by 1.2x.
"The darkness corrupts the attack"
High-priority attacks attain Dark-typing and increase in power by 1.3x
"The darkness accelerated the attack"
Dark-types have 10% increase in evasion.
Sleeping pokemon get damaged by 1/16th of max HP.
"The darkness corrupted the slumber".
Hidden Power, Stored power and ancient power become dark-type and increases in power by 1.5x.
"The powerful dark aura mutated the attack"
Sound-based moves increase in power by 1.5x and never miss unless the target is soundproof.
"ECHO-ECHO-ECHO FLOWS THE SOUND"
Dazzling gleam and Judgement transforms the field into a blessed field when used twice consecutively(one time for a pokemon with miracle eye active).
"The field was purified".
Light of ruin destroys the field when used twice consecutively.
Pokemons with the abilities Vital Spirit, Early Bird, Insomnia, Cloud Nine, Mold Breaker, Teravolt, Adaptability, Protean, Color Change, Aura Break, Turboblaze, Multiscale, Shadow Shield, Multitype, Unaware and Simple are immune to corruption and HP loss.
Nasty plot, Memento, Parting Shot have enhanced stat-changing abilities.
Nature Power becomes Night Daze
Camouflage turns pokemon into dark-type.
Secret Power may induce sleep.
