I've been invited to a group playing the beta, and, since I've played a techpriest for a long time and to great satisfaction in another group, I decided to plug the OTHER hole in their group and be a psyker.

But… well, being a psyker is rough, with lots of opportunity costs.  I picked Forboding and Assail as starting powers, then spent my first 300 XP getting Resistance (Psykic) and upping my Willpower into the fifties, but the group has been going for a bit and they gave me another 2000.  

What should I do with it all?  I was THINKING about upping my Psy Rating to 4, then grabbing Telekine Dome and Warp Sense and calling it a day.  

How badly underoptimized will I be?  Is Favored by the Warp as essential as I worry it might be?  I've got poor Strength and Ballistics Skill, decent Toughness, Agility, and Weapon Skill, and high Perception, Fellowship, and Intelligence, with Willpower as the one stat over 40.  It's late, and I'm lazy, so I won't exactly list out every last one of my other abilities, but I've got lots of resistances to fear and lots of lores.

 Want to be a credit to team squad? Go the Divination route, invest in powers that buff the party. There's one that lets them ignore cover that is really powerful.

Want to deal a lot of damage? Invest in the Pyromancy abilities. You'll be putting out plenty of pain with it.

Also, grab a Force Weapon when you can. Your abilities can buff what is probably a somewhat middling Weapon Skill into the decent range, and then you can smite daemons when they show up.

 Gotcha.  I thought a buffer would work best in Divination and Telekinesis, which is why I picked them.  Hope I can FIND a decent WS buff… that thing's expensive, and Parry's hard to train in.

SpectralTime said:

Divination is very, very good at doing buff work for the squad.

Until you get something fancy, your starting Staff gives a +10 to WS and does an extra +1 damage for being Best-Craftsmanship.

I would say to put your xp towards strong Divination powers, then any talents you need for being a good Psyker, then just buying Munitorum Influence over and over.