"Shadowclaw is the hide-and-seek champion of Darkshore – it's not even a contest, really."
Shadowclaw can't hit flying units. Whelps or Harpies paired with Spells or ground Minis to distract works well.
For every PvE mission, there is a campaign version and a Heroic version. When you first begin the game, you can only participate in campaign missions. Upon collecting 50 sigils, you will then unlock Heroic missions.
Campaign missions will grant rewards after the first successful clear with ANY family. Heroic missions must be completed with EACH of the 5 different families in order to receive the mission rewards.