From publisher blurb: A group of races from the world of Ravnica have arrived in Unearthed Arcana: loxodons, Simic hybrids, vedalken, and viashino. While native to Ravnica, these folk could potentially be used in any D&D world. They are destined for the upcoming book Guildmasters' Guide to Ravnica, out this November. Now is your chance to help shape their final forms!