Thinking things out after reading a post about Dark Reapers by Fritz40k. Now I've always put in my 5-man reaper unit to wipe out any squads of Marines who are daft enough to show their faces, but I may have to try doing things differently next game.
See, for under 150pts I can have two BS5 Krak Missiles a turn. That's some pretty heavy anti-tank fire right there. And anti-tank is something I have to admit that I'm lacking right now. Light vehicles shouldn't be too much of a problem with the Scatter Lasers and Shuriken Cannons, but when it comes to anything tougher I would have to rely on shots from my Prisms. With a Reaper Exarch hanging around I've got another chance to pop tanks, and once that's dealt with I'll still have my Eldar Missile Launcher and two Reaper Launchers to shred some Marines.
Are there better ways to get some more anti-tank into my army? Probably. But I've already got my Reapers, and it's an Aspect I really like. And by running a smaller squad I've freed up some points for something else, possibly another Vyper or some extra Warlocks in my Council. Of course talk is cheap, so the real test will be after I've tried it out on the battlefield.