not sure if already reported?
but anyway, it seems "endure" is not working as expected.
enemy had a die roll of 6 on attack, MC 4 (+2) on defence - and MC still lost HP
ah wait, found it - it does nothing when it would be over the max die value, in this case the 4 I already placed in the slot.
this was unexpected, from the combat tutorial I expected a flat bonus, not only the manipulation of the die roll
