5% of the time it is not. But when you have a limited number of actions, and so few pawns on the board, Dreamtrap is highly devastating if not managed right. I always go for the Seekers whenever I find them, and hold back my own Seekers (if I get them through normal vanilla play, or summon them through mods) until I see the AI's bigger pieces. Being able to remove those big pieces is a game saver.