So this is how I'm looking at Derlin;
I think of it this way, at his most efficient he's seven points to add 3-4 damage to your ship. Thats fantastic. Would take every time. But in practice, how often am I getting that? Since he's an exhaust effect, he can be worked around through focus fire. So I think he's going to most at home on smaller ships that are hanging out towards the edge of the battle. Several posters above me have made fine suggestions, such as Salvation or a TRC90. But thats a large point officer for those ships. Especially Salvation, which is also taking a 7 point title and probably a turbolaser upgrade. So for me, the jury is out on this card, although I am very interested in trying him on the table. Because if I find he's relatively consistent at getting a ship like salv an extra turn of shooting, then he's totally worth it. But if he's just making the fireball a little smaller then I'll find another way to spend 7 points.