Well, according to Sun: It appeared from the Ultra Wormhole. Witnesses observed it flying across the sky at high speed.
And according to Moon: One kind of Ultra Beast. Witnesses have seen it burn down a forest by expelling gas from its two arms.
Meanwhile, it's stats are
HP:97
Att: 101
Def:103
Sp.Att:107
Sp.Def:101
Spe:61.
