QUOTE (Mikado @ Mar 6 2010, 04:09 PM)

First: You may only re-roll the dice in a test if ALL of the dice fail to generate any hits.
False. As worded, the modifier "did not score a hit" can
technically be applied to
either "dice" or "test". It is by far most often read to modify "dice". Regardless of the possibility of it modifying "test" as per literary rules, it cannot do so within the definitions given by the game, as a "test" cannot ever score a "hit"; thus, it can only modify "dice".
The
correct reading, in a more precise format, would be:
"You may reroll all dice that did not score a hit on a single test"
or
"On a single test, you may reroll all dice that did not score a hit"
@pbangarthYou are incorrect. When rerolling dice, by
Rules as Written, they do not retain their previous state in any way. The previous roll is discarded and replaced with the new roll, and any effects of the roll are determined by the latter.
Thus, if the former roll was a Glitch or a Critical Glitch, that state (including the [Critical] Glitch) is discarded
If the latter roll is a Glitch or a Critical Glitch, the roll is treated as such. And because Edge has already been used to make the reroll, it cannot be again used to negate the [Critical] Glitch.
The rule for using Edge to negate a Glitch or Critical Glitch is in place as a guarantee. Doing so will not improve your roll, but it will remove the effects of a glitch with no chance of failure. Using Edge to add dice or force a reroll
can negate a [Critical] Glitch, but it does not guarantee it, and it is entirely possible of creating a glitch where there was none previously.