From Liquipedia Dota 2 Wiki
Refresher Shard is an item dropped by Roshan on his third death and every death afterwards. It is a single-use consumable Refresher Orb. Can be sold for 500 gold. Stacks with itself in the inventory and is fully shareable.
- Also replenishes charge-based abilities.
- Cooldown is independent from Refresher Orb.
- Does not reset the cooldown of Refresher Orb.