From Dota 2 Wiki
Main Article: Runes#List
- The extra gold bonus increases by 1 every 30 seconds, while the experience bonus increases by 1.4 every 12 seconds.
- An over-head text shows how much gold was given exactly. This number is not visible to enemies.
- When bottling a Bounty Rune, it grants gold and experience based on the time at which it gets activated, not bottled.
- When activated by Spirit Bear, the experience is granted to its owner.