Reading through the text for the Elemental Attunement class feature, from the Monk class, it seems as though there's not a hard range given. To quote the effect:
Elemental Attunement. You can use your action to briefly control elemental forces nearby, causing one of the following effects of your choice:
- Create a harmless, instantaneous sensory effect...
- [and so forth] (PHB p.81)
The only official range I've been able to find stated is nearby, which is unusually squirrely for rules.
Is there an official statement on the range of this feature?