From Liquipedia Dota 2 Wiki
Reduces all cooldowns of spells and items for the holder.
- Also reduces charge based replenish times.
- Does not stack with multiple Octarine Cores.
Restores health for a percentage of any damage dealt from spells. Lifesteals less from damage dealt to creeps.
- This also includes casts from items.
- Has a unique visual effect when being healed.
- Does not heal self damage.
- Does not stack with multiple Octarine Cores or Voodoo Masks.
- The name Octarine is a tribute to Terry Pratchett who died one month and a half before the introduction of the item. In Pratchett's Discworld novel series, Octarine, a greenish-purple hue, is the eighth color of the visible spectrum. It is called the colour of magic as it can only be seen by wizards (and cats) and often accompany magical discharges.