Fire Emblem Heroes just kicked off their Spring Festival event, where you can get yourself Xander, Lucina, Chrom, and Camilla in limited special outfits as alternate units.
The new Spring Festival Focus features the four heroes above, with Xander: Spring Prince as a blue lance unit, Lucina: Spring Exalt as a blue tome unit, Chrom: Spring Exalt as a green axe unit, and Camilla: Spring Princess as a green tome unit.
The event notification also mentions that as of now, this is a limited time opportunity to summon these Special Heroes. They may or may not appear again in a summoning event held in the future, so this may or may not be your only chance to ever get them.
As for the Spring Festival Paralogue Maps, there are three stages for each Normal, Hard, and Lunatic difficulties for a total of 9 Orbs. There’s also a set of Special Quests to go with the event.
Fire Emblem Heroes is available on iPhone and iOS. The Spring Festival event is now live and will run through April 14, 2017.