Graspar said:
However, when we talk of a Guardsman with nothing but massive BS versus a Psyker, than we can deal with some fun as well. Suddenly, we can have a Guardsman 1,000m (well outside of the effect range Psyker can do anything, or even sense) taking an aimed shot at the Psykers face, and he can suddenly end up with 3d10+5 pen 3 smacking him in the gob. Or even more fun, at 1,200m a MP las cannon smacking the Psyker in the face for 5d10+10 pen 10. The psyker isn't aware of these attacks so he cant react to them until they hit him, and that is a fast way to ruin his day. Hell, if we wanted something even more simplistic a strong character could just charge in and grapple the psyker, and the psyker is now helpless since by RAW Psykers cant focus power while in a Grapple, and psykers don't tend to have high Strength required to take control of a grapple.
I'd still bet on the psyker. Some creative use of divination and telepathy would have that guardsman dead without even knowing something was wrong.
What? No. No it wouldn't. The weapons and distances were used for a reason - psyker abilities are almost universally measured in M, with only a few non-combat abilities measured in KM - things like telepathy and far sight. If you want to get creative, assuming the psyker is utilizing heavy weaponry they could make use of far sight + divine shot, assuming they know exactly where the shot is coming from so that they could far sight directly to that location, than they could retaliate by the third shot that is fired (first shot is surprise round, second shot is far sight round, third shot is divine shot + retaliation round).
Catch Projectiles and Precognitive Dodge wouldn't work here immediately - Catch Projectiles is automatically null with an energy weapon (like.. The MP Las Cannon), and may not be manifested in the first round as a Surprise Round does not allow reactions. After that, if they are using a solid projectile it sure sucks, but the shooter can run away. Precognitive Dodge cannot be used for the same reason - you cannot use it in a Surprise Round, however after that it is fine, but restricts the use of manifestations.
I will admit its 6AM and I am exhausted, so I am largely taking this post by post. I agree with Jack of Tears here - all the abilities combined make a power house, but a psyker won't have all abilities combined. The response to this situation largely requires someone to have certain powers and be a certain build, and even than, they are pretty much screwed. Psykers tend to largely be squishier than.. Pretty much anything else, unless they have their protective manifestations up. Their manifestations are really bloody powerful, but they can only do one per round. However we are losing the point of such a thought exercise - the initial point was people were complaining that Psykers could (and do) pump only one Stat. Yes, they get the most out of it, but everyone can do that - and the hypothetical Guardsman was drafted up as a point of what a single point pumped character in another class could do, and how they would be able to destroy the complained WP pumped Psyker.
To deal with the responses:
Telekenetics: Catch Projectile is useless, so nothing listed in Telekenetics is any use.
Biomancy: Shape Flesh: Fly and than go into High Altitude is viable. Problems: Surprise Round: 5d10+10. 2nd Round: Manifest Shape Flesh: Receive another 5d10+10. 3rd Round: Depending on Initiative you either get away or receive another 5d10+10. These are all Pen 10 attacks, and Biomancy automatically becomes discounted if you are in an enclosed enviroment at all. So assuming the psyker can somehow soak *that* much damage (doubtful), in an open enviroment they can escape. Most likely, they are dead by than.
Divination: No, Far Sight lets you cast your sight directly to where you choose to cast it. Ie: 3KM to the west. Your facing is restricted, and you can only see in a normal distance. This takes a Full Action every manifest, and a Half Action to turn your sight. The viability on this is so incredibly questionable its not funny. Its possible, if say, you walk into a giant hive dome and notice there is a singular ledge 2km away and want to check it, but largely this requires the Psyker to be so incredibly paranoid its not practical to be something you can even remotely count upon. You have to be constantly checking everywhere at all times, and this is simply not possible in the majority of situations. The only practical use would be to walk around sustaining Preternatural Awareness at all times, which creates its own issue. However, lets use the assumption that Far Sight is used and somehow spots shooter... You still cannot manifest more than once per round. Divine Shot is only a practical return shot if you are carrying some heavy weaponry yourself. Accurate weapons don't give a bonus since its just an auto-hit no DoS attack. Divination: Marginally useful, however, likely your still dead.
Pyromancy: Okay.. And its agreed that he is useless. Barring him walking around as Molten Man at all times. Which I would say.. Seriously? Seriously?
Telepathy: Yes, Projection becomes actually viable. Problems are present however. Guess what? They have no response, or if they do have a response they cannot manifest Projection. I will run with the no response issue since nothing has voided Surprise Attack - Round 1: Surprise Attack - 5d10+10. Round 2: 5d10+10 - Psyker Manifests Projection, falls to ground unconscious. If the Psyker wins initiative here they fall to ground before they are shot.. And thus may not avoid the damage, or mitigate the damage in any way. The shooter will also get bonus BS, so hey, they definitely aren't missing. Psyker automatically will be winning the opposed WP test because they pumped WP, so they may communicate. Round 3: Either the shooter gets another 5d10+10 or Psyker goes first, Psyker gets to use abilities that basically guarantee the shooter is dead.. Assuming that they have survived between two to three hits at 5d10+10. This relies on the fact your GM will even let you use projection - you don't know the target well and its an unwilling target, but since you only are aware you are being shot at 2KM away, can you target something automatically just because its in combat? I personally wouldn't let you since it opens up unlimited cheese if you have *no ability* to detect them, and just can auto target them from out of sight.
To reiterate, the hypothetical guardsman was a thought experiment pointing out that any character can be viable by pumping a singular stat - and how such a character could be used to trump the "impossible" WP focused Psyker. If you throw them into a random room together and tell them to fight its going to act differently, but I worked with the idea that the BS focused character would be attacking the Psyker and therefore would be maximizing the situation to his benefit. The situation logically follows rather easy - all it requires is a BS character going after a Psyker with long ranged weaponry. Yes, the Psyker will get the most by pumping one stat, but it doesn't invalidate everyone else, especially with party synnergy allowing people to give bonuses and immunities to things all over the place.
Anyways to move on, manifestations aren't a test - they are like damage rolls. By RAW you cannot Fate them either, its up to GM preference. I would likely favor that people fate them as well instead of the Pheno/Peril roll since it opens up a far bigger bag of tricks (Fate manifest roll, go from 1 9 to all 9's, or all 9's to none) versus the high likely hood of taking a really bad roll and making it into nothing seriously.
Further on I agree myself as well - I look at Psykers being fundamentally fine in game already, they can be penalized to hell via other methods already through good GMing. Changes to the rules are fine, anyone can house rule whatever they want, but the vast majority of house rules I see tend to be poorly thought out affairs.