In fact, Smite (and most other psy powers) do not require to roll [PR]D10, but 1D10 x PR, which is really different!
It is much less reliable, can be much more extreme and powerful, and globally much more dispersed statistically.
The force weapon killing blow actually requires to roll [success degrees]D10 though.
According to Ross Watson this should be [PR]D10 though if I remember a recent post here correctly.
That would be this, I believe
Asked the folks that wrote the game a few questions about psychic powers and got the following responses from Ross Watson. Hope these help a bit as I saw some mentioned on page 1 and 2 of this thread.
Q.) Is Willpower bonus or a flat +3 added to Psy Rating when using a power with push? (The Push description says + 3 but the example mentions WP Bonus. p.185)
A.) The rule is +3 to Psy Rating (the example is in error).
Q.) There is no mention of Focus Power test difficulties in the rules for it, but in the examples on page 185 and 186 it mentions +10 for Push and +0 for Unfettered. Does Fettered require a test at -10, or do they all use +0 and the examples are erroneous?
A.) All focus power test difficulties (unless stated otherwise) are Challenging (+0). The examples are in error.
Q.) Does Righteous Fury work with Psychic Powers? In the righteous fury rules on 245, it seems to indicate that it only happens due to weapon damage. However some powers (Avenger and Smite mainly) function like ranged weapons. Does Righteous Fury work with all Psychic powers, none, or only
ones like the 2 I mentioned here?
A.) Psychic Powers can score Righteous Fury (assuming that they are being used by a PC or an NPC with the Touched by the Fates Trait).
Q.) Just for verification - Where the damage is listed as 1d10xPR, is that 3d10 for a PsyRating 3 character, or 1d10x3?
My GM and I have talked about Righteous Fury a few times and we agreed that we're going to go back to the DH method of just rolling an extra d10 for damage as opposed to the damage of the weapon again. Best argument for the single d10 I could come up with was a starting Rune Priest pushing with Living Lightning. 6d10 damage with a possible further 6d10 damage for each 10 rolled on the damage dice. I mean, it would explain why the Inquisition leaves Fenris alone, but seems a bit excessive...