Yeah, do some thorough testing with different weapons and units, please ..
johan osterman posted
here :
There is a one point dmg max from successful repell attempts, but this is not a regular attack (code-wise) and would probably not use any specials of a weapon such as poison or fire, perhaps even magic (vs ethereals). Not sure though.
Personally I haven't seen any "special effect" from repel .. would be interested to see a big test run .. maybe it only works with certain weapons etc.
A.