Nuro

Nuro isn't the strongest, or the funniest dragon in the Grove, but he tries to make up for his lack of social skills with flowers and herbs. To ask Nuro to mediate between a fight is like asking an Aether to stop reading books. It could happen, but honestly why would you? Nuro will only involve himself in the matters of other dragons if it will impede in his job. After all, no one wants crushed bugs. Or dirtied herbs.
And speaking of herbs, he too tends to the flora that is medicinal. He doesn't know who does what, but he knows in case of a tummyache or a fight gone wrong, there will be... Moss..? Poppy..? Who knows, but whatever it may be, the healers will be well stocked for whatever mayhem may occur.
To drag Nuro into fights is a terrible idea. He gets turned around, and can only really relay information based on the plants he's seen. He'd make a great scout, but returning messages is definitely something the Grove has to work on. But, there are other dragons to keep the Grove safe from pesky outsiders.