A
tier
This build utilizes 
Slicing Winds for mobility and engagement, while 
Hunter's Chains and 
Steel Traps provide crowd control and pickoff potential. 
Mana Sphere offers additional ranged damage to round out the build.
Strengths
Strong crowd control and pickoff potential with
Hunter's Chains and Steel Traps- Slicing Winds provides excellent mobility and engagement options
Can effectively control the battlefield and create picks for the team
Weaknesses
Requires good coordination and timing to maximize the effectiveness of crowd control
Can be vulnerable to counter-engages if crowd control is mistimed or missed
How to use Windchain build
This build is all about controlling the battlefield and creating picks for your team. Start engagements with Slicing Winds to close the distance and position yourself for follow-up crowd control.
Once in range, use Hunter's Chains to lock down a key target and prevent their escape. Follow up with Steel Traps to further control their movement and set up for a pick.
Use Mana Sphere for additional poke and damage throughout the fight. The projectile can also be used to finish off low health targets or apply pressure to enemies trying to disengage.
In team fights, look for opportunities to chain your crowd control with your teammate's abilities. A well-timed Hunter's Chains into Steel Traps can completely lock down a key target and create an easy pick for your team.
When facing mobile opponents, use Slicing Winds to keep pace with their movement and maintain positioning for your crowd control. Against less mobile targets, focus on landing a full Hunter's Chains into Steel Traps combo to maximize your control and pickoff potential.
Remember to coordinate with your teammate and communicate your intentions clearly. This build relies heavily on timing and coordination to maximize its effectiveness, so strong communication is key to success.