Bob-Orb

Bob-Orb is an orb that deals 0/0 damage by default. It was introduced in Beta, added to the demo in v0.6.18, and later had its damage reduced to 0 in the Early Access release, with its upgrades reworked.

Because it starts at 0 damage, Bob-Orb is often worth skipping unless the run already has ways to turn low-base-damage orbs into useful attacks. It can still be strengthened by offensive relics and buffs because it does not have the “Deals no damage!” effect, so effects that boost damage can apply to it normally. In practice, relics that add flat damage or scale offensive output, such as Mental Mantle, can make it usable.

• Bob-Orb is best taken only when the build has strong damage support.
• Even with 0/0 damage, it can benefit from offensive relics and buffs.
• If no such support is available, skipping it is usually the safer choice.

Its name is most likely a reference to Bob-ombs from the Mario franchise, and its sprite loosely resembles an eye.