The sunsingers super is sub par. People who use fire born don't know how to use the class. You have at least one guaranteed kill with radiance and then you throw grenades for others. You are vulnerable when self rezing. So that aspect shouldn't be changed. The melee is fine. Unless they willing to nerf the range of throwing knife or the damage of blink strike or the Titans super charge. Warlocks are made to be the median between the three classes. While Titans have more health and hunters have more speed, we have better recovery and melee range at the expense of staggering melee abilities such as super charge and blink strike. And at the expense of health and speed. Compared to the hunters super charges sunsingers are weak. It is on occasion a trade off. The only way to kill a blade dancer with radiance is to use. The one OHK melee attack that is given during radiance (two with the exotic shoulders) or with several grenades. Which usually is to slow to kill the blade dancer before they kill you. Blade dancers almost always get 2-4 kill with one super, while radiance might give 1-3. Same with golden gun. The fist of havoc makes you almost invincible with a special perk You can kill yourself with a nova bomb and you are vulnerable while launching the bomb. The only thing on the warlocks side is the two melee grenades and the melee range.

I don't have a problem with the fusion grenades themselves but Voidfang Vestments + Gift of the Sun should not be a thing. 2 free grenades every respawn is what causes much of the fusion grenade spam.