If I'll be basing it on the pack named Chaos Legion, this will be my card:

Name: Yrdin Salgu
Mana: 10
HP: 8
Armor: 0
Splinter: Death
Attacks: Melee (2), Magic (1)
Abilities: Inspire, and a new ability called "Murder"
Murder: Instantly win the battle if this card is the only monster on the user's side and there's only one melee monster on the opponent's side.
Lore: A dark elf that is once a high ranking general until he killed the king in his world and became his successor.