Shadow Trick Build Mimikyu - DecimatedSoul

Guide

Disguise - Passive Ability
Mimikyu starts the game in Disguised Form. While in Disguised Form, when Mimikyu would take damage from an enemy, Mimikyu instead takes 5% remaining HP as piercing damage, becomes Impervious for 0.5s (immune to damage but not hindrances) and changes to Busted Form. A revenge mark is applied on the enemy that broke the disguise. Mimikyu's movement speed increases by 10% when approaching revenge-marked enemies and deals 10% increased damage to them. After 50s in Busted Form, Mimikyu returns to Disguised Form. The time it takes to return to Disguised Form is reduced by 25s when Mimikyu knocks out an enemy player and is fully reset upon respawning.

Shadow Claw - Melee (4s cd)
Level 5 - Mimikyu slashes in front of themself with sharp claws, dealing damage to enemies hit. Each hit decreases enemy movement speed by 20% for 1.5s, stacking up to 3 times, and restores the user's HP. Whenever Mimikyu hits at least one enemy with a basic or boosted attack, this move's cooldown is reduced by 1s, and the number of hits when this move is used again increases. Up to 4 of these additional hits can be stored and are lost after 5s without auto attacking.
Damage - Last Hit: 153% Atk + 17 x (Level - 1) + 260
Damage - Leading Additional Hits: 45.9% Atk + 5 x (Level - 1) + 78
Healing - Per Hit: 18% Atk + 0 x (Level - 1) + 48
Level 11 - At the end of the move, deal an additional hit of damage equal to 10% of missing HP. This damage is capped at 500 against wild Pokémon.

Trick Room - Buff (7s cd)
Level 7 - Leap to a location and create a bizarre area around Mimikyu in a square. If a slow would be applied to Mimikyu within the area, Mimikyu instead receives a movement speed increase equal to the slow rate. While inside the Trick Room, Mimikyu receives 70% reduced damage from enemies outside of the Trick Room. This move can be used as often as desired while inside the Trick Room, teleporting Mimikyu a set distance with each use.
Level 13 - Reduces this move's cooldown by 1s.

Play With Me... - Sure Hit (112s cd)
Level 9 - Mimikyu leaps at an enemy and traps them inside Mimikyu's rag, dealing damage over time and granting the user a shield. The trapped enemy is only affected by this Unite Move and effects applied by Mimikyu before using this Unite Move. If Mimikyu loses their shield, or if 2.8s passes, the user stops attacking and jumps in the designated direction. The maximum number of hits is 7, hitting every 0.4s. The Unite buffs occur after the move ends. This ability counters Unstoppable.
Damage - per hit: 83% Atk + 6 x (Level - 1) + 170
Shield: 150% Atk + 0 x (Level - 1) + 400
Shield - Additional: 15% Max HP
Unite Buffs (6s duration): 30% Movement Speed, 30% CDR, 20% Max HP Shield