Dust Release: Detachment of the Primitive World Technique Cylindrical form (channeling)Flavor Text: The user uses Dust Release to create a structure which expands rapidly in size when being propelled towards its intended target and traps them inside its confines.  The Cylindrical version was implied to be enough to potentially destroy an entire area and leave ennemies severely weakened. 

Spell Description: Mū unleashes an energy beam after 0.3sec cast time which deals 50 damage every 0.5 second and lowers ennemies attacks by 35/40/45/50% within a cylindric (600 long, 250 large) for 2.5/3/3.5/4 seconds. This is a channeling spell. 

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Dust Release: Detachment of the Primitive World Technique Cubical form Flavor Text: This is the same jutsu used by Mu but under a giant cubical form which traps ennemies inside. 

Activation: Mu create a giant Cube within 600 AOE dealing 100/120/140/160 damage.  Ennemies inside the cube will be silenced for 0.5 second every 1 second and will be slowed by 15/20/25/30%.  The cube lasts for 2/2.5/3/3.5 seconds

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[Passive] Molecular StealthFlavor Text: Mu is able to hide his body on a molecular level making it impossible for him to be sensed. 

Spell Description : Mū divide himself into 2 bodies.  The 2 bodies have 60/70/80% of the original HP/MP/stats.  The 2 bodies will have their spells cooldown reset after dividing but those spells will deal half damage.  The body #2 will have different spells effects:

- Dust element Cylindrical form will lower ennemies armor by -3/4/5/6 (depend on spell lvl) instead of lowering attack- Dust element Cubical form will lower ennemies MR by 9/11/13/15% and stun them for 0.20 second every 1 second instead of slow+silence. 

The main body will be reverted back to the body #1 who had classic spells after 15/25/35 seconds EXCEPT if the player clicks again on this ultimate spell on 1 of the 2 body, This partial body will be immediately reverted back to the main body and the other body will disappear. 

PS: Mu receives the combined life and mana of both halves. Mu can't use his items while beeing seperated like jira sandals, sage, karity even if passive stats + orb are still working. 

- The 2 active spells allow both to disable by lowering attack, 1/2 silencing and slowing + to push with the damage while channeling. It is bit heavy to nuke since 1st spell requires cast time + long channeling + area just in face of him. 

- The passive survival spell is here so that Mu can escape easily from ganks when pushing. 

- The ulti allows to create a clone for tanking towers AND give more opportunities to disable ennemy team with different disabling effects.+ gives again oppurtunity to juke ennemies after pushing far a lane since you can decide which clone will be revert back to main body. 

You asked Mu as disabler/Pusher.  I hope this suggestion will suit for nwu and you all, or at least inspire you for more suggestions.