ToME: the Tales of Maj'Eyal

So while it says it brings your Death Momentum to max and grants an enormous number of turns, what it actually does at the moment seems to be a bit different:
If you have no stack of death momentum, it does exactly what it says. Same if you have a maxed stack.
If you have a non-max stat, it adds 1 to your stack and the normal massive turn count.

Not seeing a hint on this in the description, so probably unintended?

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Essence drain tends to have a weird turn count effect as well (especially when stacked). It'll just shove the timer off into the center of the screen. So instead of going from 12 to 18, I go from 12 to 18.7 that's over 3 tiles from where it should be.

Reported previously: http://forums.te4.org/viewtopic.php?f=42&t=46111

Another little thing: even at 0 charges, it only gives you 5 charges even if you can hold up to 6 charges.