From ToI the Beastman Fetish says;

"Once during your turn, you may reroll a single die."

I could intrepet this that I could reroll one die rolled by the OL, as long it is my turn. Right? If not, how come?

I am not sure if the intention is that you should be able to reroll "undying rolls" and similar, but you can if you interpret the card litterally. As long as the undying monster dies in the OL turn, of course.

If FFG wanted the fetish only to concern attack rolls they could have written "Once during your turn, you may reroll a single attack die."
Since I do not have TOI and don’t know the cost of the card, I don´t know if the literall interpretation of the card makes it clearly overpowered though.

I believe you are correct, Aamaxu.

Regarding Mooselord's concern, considering how quickly most monsters in Descent die, it's not obvious to me that rerolling an undying roll would be substantially more powerful than rerolling a stealth die.

Antistone said:

Re-rolling an Undying roll in RtL would be very powerful. When that Silver level Master Ogre that you just spent 5 turns trying to kill and had to use a power potion to do it pops back up for the 3rd straight time at full health...it can be annoying.

Playing the gold level legendary right now, the first level of the fourth floor I had Hordes of the Things + Brilliant Commander in play, so I had two extra undying beastmen, one of whom was a master. The Master Ogre and the Master Beastman took 4 undying rolls each, it was fantastic. I felt bad as I slaughtered the hero party 1.5 times through, but they deserved it - that Crown of the Elder King is no joke.

I would say fair game on the Fetish. Any roll during your turn.

Aamaxu said:

If that's the exact text of the card, then I would actually argue that you can't force the OL to reroll a dice even during your turn. It says "you" may reroll a single die, and if the OL is rolling it then you aren't the one doing it. So for Undying, the OL rolls the Undying result not the Hero so you wouldn't be able to do it.

A bit literal on the intepretation perhaps, but that's how I read it.

Big Remy said:

I second that. If you were not rolling in the first place, how can you re-roll something?

We had the Fetish in play a few times already, and the players never even thought about it, they focussed on their own rolls (and rerolls).

As long as we're being super literal: the rulebook actually says "When an Undying figure is killed, roll one power die." It never says who actually rolls it.

Thundercles said:

Very true.

So I guess it all depends on who is making the roll then in the case of Undying. My groups have always had the OL do it since it was a monster ability.