Slow

A Slow is a type of status effect that reduces the afflicted units Movement Speed and Attack Speed by a percentage of their current Movement Speed or Attack Speed.

Slows that are not Unique Attack Modifiers stack additively, following the Movement Speed Formula and Attack Speed Formula. The maximum amount of Movement Speed Slow is limited by the minimum Movement Speed of 100. Hex abilities set base hero movespeed to certain values: Lion's and  set it to 140, and Shadow Shaman's  sets it to 100. The maximum amount of Attack Speed Slow is limited by the minimum Attack Speed of 20 (default attack speed of each hero without any bonuses is 100).

The abilities, , , , and the Rune of Haste will make affected unit completely immune to slowing effects.