Each Wildcard has a rarity (common, uncommon, etc) and can be exchanged for any other card of the same rarity
Much like Aladdin, Heroic Outlaw, Robin, Champion of Sherwood will net you a tasty two lore whenever he banishes an opposing character in a challenge - a shame his steel identity means he wont be forcing your opponent to lose lore as well like his predecessor
BPhillipYork: Great if there is a creature you want to get back to your hand for additional ETB triggers or maybe a hatebear you want to remove so you can do stuff on your turn, stuff like that
Token doublers like Anointed Procession are also high on the list of broken things you can be doing with this card
Heroes of the Realm cards are given to Wizards employees, with their name printed
Set and card names are used descriptively to identify compatibility