From Shadow Era Wiki

Card_No: ll039
Rarity: Common
Name: Gloomwielder
Type: Neutral Ally - Aldmor
Cost: 3
ATK: 3
HP: 4
Ability: While no opposing hero has more shadow energy than your hero, other Aldmor allies you control can't be targeted by summoned abilities by opposing players.
Flavor Text: And so came a great shadow, ensuring it would be the only thing cast upon them that day.