Two different Clairsentience-exclusive powers listed in the Expanded Psionics Handbook allow you to reroll your dice rolls. Here is the text of both powers from d20srd.org, emphasis and trimming of identical or irrelevant details mine:
Level: Seer 5
Manifesting Time: 1 standard action
Duration: 1 round/level or until discharged
Power Points: 9
You take a hand in influencing the probable outcomes of your immediate environment. You see the many alternative branches that reality could take in the next few seconds, and with this foreknowledge you gain the ability to reroll one attack roll, one saving throw, one ability check, or one skill check each round. You must take the result of the reroll, even if it’s worse than the original roll. You do not have to make another roll if satisfied with your original roll.
Fate of One
Level: Seer 7
Display: Mental and visual
Manifesting Time: 1 immediate action
Power Points: 13
Your limited omniscience allows you to reroll a saving throw, attack roll, or skill check. Whatever the result of the reroll, you must use it even if it is worse than the original roll.
So, the higher-level power costs more PP to reroll just ONE die, while the cheaper one lasts for 9 rounds or longer, during which you get as many as NINE PLUS rerolls (thirteen by the time you get to the same manifester level that would allow you to use Fate of One). The only real advantage of Fate of One is that you can wait to spend those 13 PP until after you flub a roll...but if you just assume you're going to flub at least one roll over the next several rounds, it'll probably be worth spending just 9 PP pre-emptively on the basis of that assumption, rather than waiting until it happens. To top that off, the name "Second Chance" (given that it's not "Nine Or More Second Chances") seems to better fit the concept of the other power, which is higher-power but seems substantially less useful.
My theory is that the text and names of these two powers are backwards, and that Second Chance should be the immediate-action one, while Fate of One should be a level 7 power that gives you 13 or more turns of rerolling every single round. Anyone else feel like the RAW has this one wrong?
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