Rune:

A rune is a special pickup that appears on the map and gives a temporary effect or benefit when collected. In Dota 2, runes are important for controlling movement, restoring resources, and creating opportunities for fights, ganks, and lane pressure.

Some runes provide mana or health, while others grant combat or mobility effects. Because their spawn locations are contested, teams often watch rune areas to secure advantages for their mid laner or to deny them to opponents.