Bramble's Brain Chain

You perform a ritual to establish a telepathic connection between yourself and another willing creature. Additional casters may cast the spell at the same time to include themselves in the link.

Until the spell ends, the telepathic connection between you and the target/other casters is active and you may use your action to communicate telepathically with all linked creatures/caster. Through the link, the connected creatures can understand your telepathic messages to each other even if you do not share a language.