Hellboy: The Board Game – Hecate Monster Booster

Additional boss for the game.
The expansion introduces rules for surprise threats. These cards introduce dangerous enemies (even bosses) into play without warning.
The surprise threat from this expansion adds Hecate to an area with as many witches as possible. If there are no such areas, Hecate appears near the main agent with two witches. If there are no witches on the field at the end of the round, Hecate and her surprise threat card are removed from play.
Hecate can use a ranged attack against one agent in her line of sight, or a melee attack against all agents in her area. If at least one point of damage is dealt, the agents are stunned.