Heroes of Might and Magic V [Game Discussion]

REFERENCE

1. You cannot miss or hit more than 3 times in a row.
2. The hit chance is 50%.
3. Only physical attacks are taken into account (magical attacks ignore this ability).
4. Luck and other factors do not affect the result.

Incorporeality
This creature has no body, so any physical attack against it will only succeed 50% of the time.
No more than three misses/hits can be made in a row against an "incorporeal" unit; the fourth attack will always hit (after three misses) or miss (after three hits). This counter is shared by all incorporeal units.