What book is "Ghost in the Warp" in?

Phi6891 said:

Ascension. It is a Primaris Psyker trait... not sure if it is the one all Primaris Psykers get, or a possible choice amongst three.

Concerning the whole convoluted situation:

I would STILL rather rely on a Force Barrage. It doesn't require the psyker to be in melee range; No defenses are perfect, and melee is brutal in general. It doesn't require the psyker to take a particular Advanced Class that requires a particular career branch (with extremely stringent requirements to get in, ESPECIALLY for a psyker, and which has a lower cap of psychic potential); any Joe-Shmoe Telekine with good taste in power selection (read: takes Force Barrage) can be devastatingly effective at it. It doesn't require you to have an Ascension-only, Primaris-Psyker only trait; 6 shots of 1d10 +6, which ignores most Daemonic Toughness boosts on what will almost always be an unarmored target, is a potent tool from the get-go.

Can a tooled-out, min-maxed, 12th rank Ascension-level Primaris Psyker Templar Calix kick daemon ass?

...Fuggin' better. Its a 12th rank Ascension-level Primaris Psyker Templar Calix!

This coming from someone currently playing a tooled-out, min-maxed, 6th rank Templar Calix.

I think I remember it being a choice. You could chose to ignore penalties on your Phenomena/Perils tests, or Ghost in the Warp, or another shenanigan.

The other one is something like use a psychic power as a free action and not have it count as a combat action.

An important thing to note about A Ghost in the Warp would be the last sentence.

"At the GM's discretion, he may decide that some powers are so potent or destructive that they cannot be hidden by this ability." They probably had the Rank III Psychokinesis and Pyrokinesis Ascension powers in mind, and perhaps Holocaust.

I personally don't think Psychic Blade would be unreasonable with the power, as it would only allow a single attack (and that would probably be made at 70+, maybe 80+ Willpower anyway, since it is an Ascension-only ability), and any enemy important enough to need to protect from such an attack would probably have fate points anyway.

I don't care that the Psychic Blade qualifies for A Ghost in the Warp.

You may stab your Daemon Prince with it and no one will see you had a "blade" in the hand. BUT I don't really see the Daemon Prince as "surprised" by an attack, even if you come up empty-handed. Unless if, by some RP, you trick him (playing the chaos worshiper, or anything remotely clever and not "DURRRRR got rulezzz, gimme mah +30 to hit and no dodge no parry DURRRRR").

And then again, anyone's mileage may vary on that.

Stormast said:

A Templar Calix will, by dint of AC requirements, have a Force weapon of some kind. That should be sufficient distraction (as it DOES technically constitute a threat to a Daemon, albeit not nearly as dangerous of one) to allow an invisible, inaudible blade-a-molecule-thick that is guided by the user's thoughts to get one or three "surprise" Chaos-kidney shots. Time the strikes correctly (that is, move in a similar manner to where the Psychic Blade is roughly being aimed) and your strikes will coincide with the strikes of your force weapon and simply appear to go "hahahah NO" to any attempts the Daemon takes to block/parry the strike. Since we're talking about a 12th rank Templar Calix, I would think that should be quite doable without too much trouble.

Is that what you meant by "trick"? More devious would be to take a purely defensive stance with the force weapon, waiting for attempted strikes by the Daemon and timing your Psychic Blade attacks to coincide... striking the Daemon coincidentally where they just attempted to strike the Templar.

Eventually the Daemon should catch on to the game (I'd give it a single round of attacks at +30, were I ever to GM) when he realizes how much the force-weapon strikes are for show, and will act accordingly. If it isn't diced into fist-sized chunks of raw chaos first, that is.

That's one of the things I would accept as "a trick".

And if the Templar Calix varies it, I'd even be favorable to continue giving him the bonuses.

I'm all for rewarding clever ideas, and not rewarding the absolutely straight use of the game play rules. Not penalize that. Just no bonuses for just saying "I haz a bonus".

Not all players are as clever as their characters; sometimes a mechanical bonus can be used to evoke what could otherwise be described if the player were playing their character RIGHT.

It shouldn't be abused, but I know for a fact I can barely play my 17 fellowship voidborn as charming as he mechanically should be... =P

Yeah, but the whole point of this benefit isn't exactly to get the enemy to be surprised. Hence my precautions, that the PC should at least try to do something clever to get such a benefit.

A Ghost in the Warp can help you use powers where you would be forbidden to, Dominate someone without anyone noticing...Not only get +30 to hit and no dodge to Psychic Blade. All I would be asking for would be to have a coherent idea to use the benefit of A Ghost in the Warp (i.e. "The power is invisible").