If solo's are going to go up against premades who are all probably on discord together, they should be able to communicate as well. Obviously implement some options such as: lower or increase a teammates volume, mute them entirely, mute all, push to talk keybind by default, voice detection with no keybind if wanted, a visual number of your teammates who are connected to the voice chat, and finally an option indicator over your ally when they are talking.
Tımë Ðâzzlër - Stamina Warden - AD
Tımë Ðâzzłër - Magicka Nightblade - AD
Tımë Ðâzzłêr - Stamina Templar - AD
Sugar Deady - Magicka Necromancer - AD
Sprint v X - Stamina Sorcerer - EP
Tımë Ðâzzlër Ðk - Stamina Dragonknight - EP
Time Dazzler - Magicka Warden - DC