[Box]

The Contenders!

HP: 90
(Where are my sunglasses?)
--
Lambda @ Amulet Coin
#Torrent2 / 3 / 3 / 3
37 Speed / -10 Evade
Size 1 / Weight 1
HP: 110
(DUN DUN DUN!)
--
Tsan the Motherfucking Dunsparce
#Serene Grace / Run Away
4 / 3 / 3 / 3
39 Speed / -10 EvadeSize 3 / Weight 2
HP: 90
(I'm the shy type...)
--
Zeta @ Exp. Share
#Shed Skin
3 / 2 / 3 / 2
43 Speed / -10 Evade
Size 2 / Weight 1

HP: 90

(Ready to be violated?)
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Purple Boss
#Levitate
1 / 2 / 4 / 2
109 Speed / +20 Accuracy
Size 3 / Weight 1
HP: 90
(Where are my sunglasses...)
--
SOD @ Amulet Coin
#Iron Barbs
2 / 4 / 1 / 3
9 Speed / -10 Evade
Size 1 / Weight 2
HP: 90
(I'll play tricks!)
--
Mind
#Soundproof / Filter
0 / 2 / 3 / 3
69 Speed / +11 Accuracy
Size 1 / Weight 2

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Well, let's get to reffin'
A nitpick; have finalised cleaned-up, bolded commands like I'm about to type please.
Also, I don't see why Icy Wind can't be used. Dunsparce will get Taunted no matter what if he uses Thunder Wave, so changing targets doesn't make a difference.

Mind: Light Screen - Icy Wind

SOD: Stealth Rock - Spikes

Purple Boss: Toxic (Dratini) - Venoshock (Dratini)
>If Dunsparce uses Thunder Wave, then replace that action with Taunt (Dunsparce) and push actions back, but only once.
--
Dratini: Thunder Wave (Haunter) - Dragon Pulse (Haunter)

Dunsparce: Thunder Wave (Mind) - Bite (Haunter)

Squirtle: Fake Out (Mind) - Scald (Haunter)

Round 1 Calculations

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Haunter - Mime Jr - Dratini - Dunsparce - Squirtle - Ferroseed

A1
Squirtle used Fake Out!
3122 No Crit
Mime Jr: 4 Damage
Mime Jr flinched!
-4 En

Haunter used Taunt!
Dusparce was taunted!
-10 En

Dratini used Thunder Wave!
Haunter was paralyzed! It may be unable to move!
-7 En

Dunsparce used Thunder Wave!
But it failed!

Ferroseed used Stealth Rock!
Pointed stones hover over the enemy team!
-12 En

--
A2
Mime Jr used Icy Wind!
But it failed!

Dratini used Dragon Pulse!
7013 No Crit
Haunter: 9 + 3 + 1.5 = 13.5 Damage
-6 En

Dunsparce used Bite!
7720 No Crit
Haunter: (6 + 3) * 1.5 = 13.5 Damage
-4 En

Squirtle used Scald!
4776 No Crit
5819 No Burn
Haunter: 8 + 3 + 1.5 = 12.5 Damage (Total 40 Haunter)
-5 En

4376 No FP
Haunter used Toxic!
Dratini was badly poisoned!
-7 En

Ferroseed used Spikes!
Spikes were scattered at the opponent's side of the field!
-8 En

Dratini was hurt by its poison!
-1 HP (Total 10 Dratini)

---
Post Round 1

(I don't need shades to beat you like a bitch)
--
Lambda @ Amulet Coin
#Torrent
2 / 3 / 3 / 3
37 Speed / -10 Evade
Size 1 / Weight 1
HP: 90
EN: 91
Buffs: -
Debuffs: -

(Friendship is magic!)
--
Tsan the Motherfucking Dunsparce
#Serene Grace / Run Away
4 / 3 / 3 / 3
39 Speed / -10 Evade
Size 3 / Weight 2
HP: 110
EN: 96
Buffs: -
Debuffs: -

(Was that satisfactory?)
--
Zeta @ Exp. Share
#Shed Skin
3 / 2 / 3 / 2
43 Speed / -10 Evade
Size 2 / Weight 1
HP: 89
EN: 87
Buffs: -
Debuffs: -

(*spasm*)
--
Purple Boss
#Levitate
1 / 2 / 4 / 2
109 Speed / +20 Accuracy
Size 3 / Weight 1
HP: 50
EN: 83
Buffs: -
Debuffs: Paralysis (20%)

(Flawless performance by this fine seed right here)
--
SOD @ Amulet Coin
#Iron Barbs
2 / 4 / 1 / 3
9 Speed / -10 Evade
Size 1 / Weight 2
HP: 90
EN: 80
Buffs: -
Debuffs: -

(Tricks!)
--
Mind
#Soundproof / Filter
0 / 2 / 3 / 3
69 Speed / +11 Accuracy
Size 1 / Weight 2
HP: 86
EN: 95
Buffs: -
Debuffs: -

Arena Conditions
Spikes (1) set up on Lord Jesseus' side of the field
Stealth Rocks rigged on Lord Jesseus' side of the field

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LJ you're up.

P.S. Orcinus, you aren't fooling anyone with the ridiculously high accuracy numbers listed in your Pokemon's profiles. Who approved them anyway? Please take note of the correct formula and fix the values accordingly.

P.P.S. Tsan gets a coloured name because he's a Dunsparce