Now there are a fair number of combinations out there, but for the purposes for this ramble I will be focussing on the army combinations I am interested in.
Necrons & Blood Angels
Necrons & Space Wolves
Blood Angels & Necrons
These combinations offer up some interesting options, but before you begin building your Depserate Ally list you want to make sure you are clear on what the disadvantages are.
One Eye Open
IC's Cannot join Allied Units
Allied Units count as Enemy (for Purposes of Psychic Powers / Abilites)
(If I have missed any please let me know).
So when I look at building a Desperate Alliance army you need to take the above into account, for me the main ones to worry about are the Non Scoring & Non Denial Units.
These rules basically make Troops pointless, the Non Denial is something to bear in mind but not one of the big things I consider for my army building.
So with the consideration that you arent taking your Allies for better scoring oppourtunities what I do is have a look through the Codices for units that interest me, ones that might be fun to use or try out, but that I dont want to own a full army for.
Below are the ones I really like from each Codex
Why narrow it down to these? Well my aim will be to take a minimum Troop choice, and then spend as many points as I can on other toys for my Allies.
However just whacking in the toys you like will leave you coming up short. The main thing to do is to look at where your allies can buff your main detachments weaknesses.
So when adding Wolves / Blood Angels to a Necron primary force I always look to add a bit of Shock&Awe and Close Combat.
Shock&Awe is my way of saying in your face, so drop pods are good for this, even as a sacrifical unit as you can get in close to the enemy and force them to deal with you.
The other thing to consider is that in any game where scoring is the aim, your Allies should be used to destroy enemy scoring units in their deployment zone, if the enemy has a couple of Elite Units that will hold up my Thunderwolves, or a Squishy Tactical Squad to charge... charge the platoon. You dont care if you wipe them out then get shot at, especially if that is their only, scoring unit in the area.
Next time, a couple of sample Desperate Allied Army Lists!