Ok, since we're into "wishlisting" here, I can't help listing the stuff that I think really needs to be fixed in our codex. Everything is reasonable mind you
1. All infantry, jump infantry and bike units should have plasma+haywire grenades as standard (where it makes sense, of course - obviously Banshees don't need plasma and Dragons don't need haywire).
At least this change should be made to all Aspect warriors.
Reason: armies of all "civilized" races have that, and that is what considerably helps other armies to deal with tank-spam. And Aspect warriors (especially assault specialists like Shining Spears) going into battle without basic assault equipment is utterly ridiculous.
2. Bright Lance should get AP1. Certainly not S9 (out of character), and cost reduction won't help it much.
EML and Starcannon should have their cost go down to the same level as that of Scatter Laser.
Reason: An awfully expensive dedicated anti-tank weapon should actually be capable of killing tanks effectively, don't you think?
As for other weapons, they are just weak and can't be priced that high.
3. Autarch should get a boost to his Master Strategist rule. Something like being able to add OR subtract "1" to/from each Reserve roll, and to reroll unfavourable Outflank rolls. Also, Autarch should get a good boost in terms of weapons (without cost increase).
Reason: The existing Autarch is really not a cost-effective point investment.
4. Generic Farseers absolutely need a boost of their psychic performance. I envision something like the following:
- Basic Farseer at ~100 pts; he already knows any 2 powers and can cast them both each turn.
- Something like "Venerable" Farseer (or a Farseer w/Spirit Stones) at ~150 pts; knows any 3 powers; can cast any two of them each turn OR attempt any one of them twice each turn (i.e. he can take up to two psychic tests each turn, which can be either for 2 different powers or for 2 attempts of the same power).
Reason: Farsers as they are now would never be able to compete with Eldrad (not even if Eldrad's cost goes up to some 250 pts). The existing Farseers are ok in formats up to 1500, but at 1750+ their support is just to weak to noticeably affect the course of the battle.
5. Some units need fixing, namely:
- Shining Spears: should have grenades (or equivalent rule) and either a serious cost reduction (down to ~25 pts per model) or serious boost of survivability. I'd love to see them at their current cost but with Holofield-generators giving them 4+ Inv save
- Wraithguard: either cost reduction or boost of killing power (Wraithcannon with range of 18" ?)
- Vyper: this one absolutely needs to be turned into a standard jetbike with natural T4 and 2 wounds. Should be available in squadrons as FA choice (like now); also should be available as an upgrade for Guardian jetbike squads (say, 1 Vyper per each 6 jetbikes).
- Guardian jetbikes: cost reduction to ~18 pts, and cannon upgrade at 5 pts.
- Hawks: I honestly don't know how to fix them, as I think the whole concept of this squad is flawed. Maybe just make them cost the same as any Elite Aspect warrior on foot.
6. Tanks
I'd really like to see BS of Falcons going up to 4. Wave Serpent I think should remain BS3 but get a overall cost reduction. Cost of cannon upgrade should go down to 5 pts. Also, it will be nice to have an upgrade that will let our tanks shoot 2 main weapons after moving 12". One other thing that I'd really like to see is some sort of an upgrade option to make a tank more resistant to melee attacks.
That's about it I think... Lots of other tweaks can be suggested, but the stuff I listed above is major.