I while ago I posted this race before the system was officially announced, but I want to see what people can come up with. Just read and post, it's that simple.
Sentians
Sentians are an intelligent native species of the planet Melot. They have a metallic skin and their eyes are like gems which come in a variety of colors. Pacifists and curious by nature, their base form is a liquid metal, but they can copy the appearance of any humanoid race by engulfing a host that the sentian finds fascinating, this copy ability does not hinder the subject at all, but he/she is covered in tiny shards of leftover metal that shine when exposed to the sun for about two to three weeks. The sentian takes the basic shape of the subject but does some minor adjustments here and there, such as appearance, these changes are what, in the mind of the sentian, are improvements to the race it has copied. After taking the shape of a humanoid, the sentian loses the ability to copy another humanoid forever.
Physical Description: It is difficult to give a general description of a sentian because they meld with existing races, taking their forms and making adjustments to “improve” the race, there is a quality that all sentians do share, and is that they look about the same as the humanoid they copied, except for the obvious metal skin and gem-like eyes, their hair is as varied as the sentian wished it to be, but its pretty flexible. The sentians have no male or female genders as they reproduce asexually once a year by depositing a “metallic cell” inside raw metals of sufficient size to produce up to a medium sized humanoid, the “metallic cell” takes about a month to develop in to liquid version of the material used. Its diet consist of rocks and soils which they use to replenish the minerals found in them. Sentians can live up to about 300 years, they sleep like any other humanoid race. When a sentian dies, its body quickly rusts, leaving a pile of unusable metal that it was composed of.
Society: Due to their ability to copy and “perfect” other humanoid races, they see no incentive to gather, and thus can be found anywhere, since they can be valued allies to many races, some are kept as slaves, whereas others roam free. Among the humanoid races, they get along with the dwarves, often forming pacts to better serve the necessity of their communities. Sentians are the only race able to “speak” sentian, since it is done by emitting metal hums and sounds.
Relations: Sentians get along very well with all races, as they are always finding a way to perfect their chosen base forms, they hate slavery as any other race, and although serene and curious, sentians can go in to outburst of rage if they find any mistreat of another sentian.
Alignment and Religion: Sentians are very diverse in their aligments, but they tend towards good, for they are so obsessed with perfecting life forms, that they often loathe to harm any other intelligent race. Sentians tend to adopt the local religion of their chosen community, and make up for fervent leaders.
Adventurers: Sentians who have adopted a form are usually found among their absorbed form, a few however seek out other races places where they can leave a youngling in order to copy that race, and commence the circle of “perfection” once again.