Here's the modified list for your friend to try versus the Eldar.
Try this List @1000 for size, Cheap Inq. and Canoness, 3 Troops, 2 Exorcists, Callidus
Canoness w/Bolt Pistol, Book, Eviscerator @71Would ride with the Celestians, basically there for the faith
Inquisitor w/Plasma Pistol/Combi-Plasma @60Cheap, allows the Callidus and rides with Plasma Troopers to kill all the 3+ saves and War Walkers around. He doesn't ride with Sisters becasue that would stop them using Faith
Callidus @XXXRips the Dark Reapers a new cavity - can move and fight normally on the time she arrives from reserves - anywhere on the field
5×Celestian, 2xMelta, Immo, Smoke, @153Hunts Walkers and Prism
5xStorm Trooper w/2xPlasma, Rhino, @125Plasma Spam for taking down JBs (and Autarch - Instant Death). Scoring Unit
10xBattle Sister w/2xFlamer, Vet w/Book @194
Rhino, SmokeCaptures Objectives, Flames Harlequins. Smoke prevents them being nailed before arriving. Divine Guidance to rend Jetbikes and Spiders
9xBattle Sister w/2x Flamer, Vet w/Book @178
Rides with Canoness. Captures Objectives, Flames Harlequins. Smoke prevents them being nailed before arriving. Divine Guidance to rend Jetbikes and Spiders
2x Exorcist @270Both sit back and murder JBs, try and destroy the Prism first. If the Autarch goes solo, rocket his face
Comes to 998, 2 Troops, 28 models, 5 vehicles, 4 Faith, 11KP
Right, I'm back and added stuff below each unit.
I know the Canoness and Inquisitor need more gear, but 1000 points is all about bodies on the table IMO. Though about flying Canoness of Death but to include 2 not 1 Exorcist, Inquisitor and Assassin had to go as cheap as possible.
With two troop choices on the table then this list should be alrightcapturing objectives. 5 vehicles will be hard to deal with for everybody, that's a lot of armour saturation at 1k.
4 Faith for a few crucial acts, Divine Guidance to combat the many 3+ saves. Don't worry about the multitude of KPs, they'll be hard to get (not much AT fire around)
If it was me I'd not take an Inquisitor or Callidus, I'd gear up the Canoness, and get another BS squad in place of the stormtroopers.
Very easy to use, has units to combat tanks, terminators, marines and hordes, good all-comers list. 2 Exorcists at 1k is very powerful.
I'll just explain the loss of the 3rd Troop choice, BSS are 10 women minimum, as you probably know, but then the Canoness can't fit in the rhinos, and there were no points for a jump pack - and a decent weapon for her to fly with so I had to change it to Celestians, gives better anti-tank anyway.
Just thought this is a decent list if the guy wants an Inquisitor and Assassins . If not, lose the Inquisitor, Callidus and Stormtrooper (@-305) add BSS squad similar to previous one @+194, give each BS squad a Heavy Flamer @+12, and then you got 100 points to spend - maybe get an empty Immolator w/Multi-Melta and Smoke @85, or just a flamer one, and chuck in a few combi-flamers on the Vet.Superiors.
Hope that helps. / CF