Primal is not a real kingdom, but that's where the seasonal imps come from.
Imp of Love
|Lord of Imps|
|All troops gain +2 Life for having 2 unique Primal troops|
|Duke of Imps|
|All troops gain +4 Life and +2 Armor for having 3 unique Primal troops|
|King of Imps|
|All troops gain +7 Life and +3 Armor for having 4 unique Primal troops|