Dawnbreaker

Dawnbreaker is typically a strong laner. Play aggressively and jump opponents out of position.

Keep an eye on the map to save an ally in trouble with Solar Guardian and turn the fight around.

You can clear waves from safe distance by using Celestial Hammer.

Play seperately from your team, push out lanes and mask team's smoke moves as you can connect to your team with ultimate.

With the Aghanims Scepter, think about how long you should heal an ally and land quickly if the stun is necessary.

Someone buy a Spirit Vessel to counter Dawnbreaker's healing

Keep distance from Dawnbreaker so she can't use Starbreaker too often.

Avoid diving enemy heroes as Dawnbreaker can assist them from anywhere on the map with Solar Guardian.

Avoid clumping up against Dawnbreaker's AoE damage and disabling spells.

Items that reduce healing are great against Dawnbreaker's Luminosity and Solar Guardian.

Break effects remove Dawnbreaker's Luminosity.