On Ulgrotha
Despite the harsh event that occurred on Serra's realm, this was not the end of the planeswalker's story. After Radiant took control, Serra left with a group of her creations and fled to many planes until she landed on the devastated world of Ulgrotha (the site of the Homelands Set). There, she met a conservation-minded planeswalker named Feroz. Together, they restored Ulgrotha in its natural beauty and made it safe from the summoning of other planeswalkers. Later, Feroz and Serra married and settled.
Read more about this topic: Serra (Magic: The Gathering)