Time Dilation can prevent Dawnbreaker from using her abilities after initiating, and slowing her down severely. Time Lock combined with his high attack speed can lock Dawnbreaker in place, preventing her escape with Celestial Hammer. Chronosphere locks down Dawnbreaker in place right after she uses Solar Guardian.
1 Valora, the Dawnbreaker If you have any questions you can join the #dota2 channel on Discord.
Dawnbreaker throws her weapon at a target, inflicting damage on any enemies struck in the process. When the hammer reaches its destination, it stays there for two seconds before returning to Dawnbreaker — while returning, it leaves a trail of fire behind that slows enemies.