Main Article: Runes
- Power-up Runes
- Power-up runes start spawning at the 6:00 minute mark, and then every 2 minutes (8:00, 10:00, 12:00, etc.)
- They spawn at one of the rune spots within the river, which is randomly chosen.
- If a Power Rune is not picked up before the next one spawns, it disappears.
- The same Power-up Rune cannot spawn twice in a row.
- Only increases base damage and that given by the primary attribute of the affected hero. Raw bonus damage is not increased.
- The hero's current main damage is checked periodically, and the bonuses adapted instantly.
- The buff of multiple Double Damage Runes does not stack, but refreshes the duration instead.