Tranquil Boots

While they increase the longevity of the wearer, this boot is not particularly reliable.

+ 26% Movement Speed
+ 16 HP Regeneration

Passive: Break

Whenever you attack a hero or are attacked by any unit, the bonus 16 HP regen is lost and the movement speed bonus is reduced to 18% for 13 seconds.
Movement speed bonuses from multiple pairs of boots do not stack.