Orbs are obtained by completing a raid (usually 1 for each completion, for each player). An orb of one of the three types is consumed in addition to Credits and hero shards to increase the star rating of a hero from 5 to 6.
- Stellar Orbs are common. All silver heroes require a Stellar Orb to promote to 6 stars. Some gold heroes (Firestorm, Atlantean Armor Aquaman, Unbreakable Cyborg, Emerald Green Lantern, Horrific Scarecrow, Master Thief Catwoman, Primal Swamp Thing) also require a Stellar Orb.
- Cosmic Orbs are uncommon. 10 Stellar Orbs can be traded for 1 Cosmic Orb. Most gold heroes require a Cosmic Orb to promote.
- Galactic Orbs are rare. 5 Cosmic Orbs can be traded for 1 Galatic Orb. Many newer and stronger gold heroes (including, but not limited to: Mythic Wonder Woman, Power Girl, Atrocitus, Black Adam, etc.) require a Galatic Orb to promote. Arkham Knight Batman, the only legendary character, also require one.