So the new Chaos Daemons codex has a few methods that bring new units into play after the game has started. When a new unit of Pink Horrors enters the game are they allowed to generate a psychic power? The BRB states that psykers must generate their powers before both players deploy their armies. I cannot find anything in the daemon codex that allows new units of horrors that enter the game after it has begun to ignore that requirement. Is there something I'm missing?