Royal Hunstman is a Spirit affinity legendary from the High Elves faction. Royal Huntsman has one of the hardest hitting A3 abilities in the game to destroy a tank as it ignores all defense! This is especially good for Arena provided you can control the rest of the threats. He also has an AOE decrease defense ability which is a 100% chance to hit if you land a critical hit.
Therefore you need to build good speed, accuracy, and 100% crit rate to get the most out of him.
In January 2021 the Royal Huntsman has his AI changed so that he does use his A3 hard-hitting nuke on Auto against bosses. This is a game-changer and made his viability much stronger!
Huntsman is particularly strong at wave nuking in all content rather than boss encounters!