Xenagos is the first satyr planeswalker. He is also an addition to the collection of red and green multicolored planeswalkers (Sarkhan Vol, Domni Rade, and Xenagos the Reveler). In the storyline of Theros, he is a madman planeswalker who searches the multiverse for fellow revelers. He finds himself in disappointment or the rest of his life, for he found out that the influence and reverence of the five gods (Heliod, Thassa, Erebos, Purphoros, Nylea, Pharika, Phenax, and Mogis) only exist on his homeplane, Theros. He later on becomes one of the next gods of Theros. I assume that he has come under the influence of Nicol Bolas, an Elder-Dragon planeswalker, because the following reasons:
1) The "Born of the Gods" set symbol.
2)The shape of Xenagos' horns.
3)Ajani (and Elspeth) has come to Theros.
Never underestimate him which the citizens of Theros have done far too often. I assume he will become a Minor God, although, the fact that he is a planeswalker may cause him to become a Major God instead.