Which monster do you like the most in Heroes 5 at level 7?

Considering that:
1) they will most likely attack with luck (in Sylvan, almost everyone boosts their luck).
2) the "defense" parameter for the elf is very high (45% of stats go into it).
3) there is a high chance that there is an ability called "Skilled Defense" (which reduces damage in melee combat by 30%).
ID units are actually quite good at level 7.