Unique Attack Modifier

Orb Effects refer to attack modifiers that alter a Hero's basic attack to provide an additional effect. An example of this is Morbid Mask, which grants the lifesteal effect. Certain Hero abilities are orb effects, such as Broodmother's Incapacitating Bite. All Items that grant Orb Effects are purchased from the Artifacts shop. Not all attack modifiers count as orb effects

Priority
Multiple orb effects do not stack; one orb effect always takes priority. The order of priority is as follows:


 * 1) Conditional Orbs - Orb effects that only occur on some attacks and are not controlled by the player, such as Maelstrom (chance-based), Mjollnir (chance-based), and Geminate Attack (cooldown-based)
 * 2) Ability Orbs - Orb effects granted by Hero abilities*
 * 3) Standard Orbs - Orb effects granted by items, with the first acquired taking priority

* ''Autocast Orbs, such as Viper's Poison Attack, will only override other orbs if they are set to Autocast or are Manually cast. If they are Manually cast, they cannot be overridden.''

There is one known exception: Eye of Skadi and Lifesteal Orbs can both be active at the same time. (Lifesteal is granted by Morbid Mask, Helm of the Dominator, Mask of Madness, or Satanic.)

Items that Grant Orb Effects










Hero Abilities that Grant Orb Effects












* ''This orb effect can be cast manually or placed on autocast. Casting this orb effect requires mana. If it is case manually, it can be used to orb walk.''