[E] Guiding Light has an audio queue that sounds whenever an enemy is blinded, which makes the ability great for information gathering.
Use Skye's [Q] Trailblazer as information gathering tool. Clear as many angles as possible with it, and ideally have a teammate follow it in to capitalize on space that the Trailblazer clears out.
Always left click at the end of [Q] Trailblazer to get the bonus distance from the jump.
[C] Regrowth will only heal allies if there is a clear line that can be drawn between you and the ally being healed.