This is really hard to tell.
The "trollmagiers" (please forgive me that I can't translate the names

)
are many more creatures than the "Chaoshydras", but the "hydras" can attack several at the same time.
But I think it depends on the abilities of the hero, since his attack and defence values will be added to the battle values of the "hydras", if it's a high leveled character, the "hydras" will win for sure, the hero can propably use magics that decrease the number of them by the half, before they can reach the hydras at all ;).
So I suggest the "hydras" will win, but as the hero's values aren't visible I am not that sure.
Go "hydras"!!
