Sylvan vs. Necropolis

Antimagic is incredibly effective against an elf warrior! Think about it, Lordesat, Ossir can use antimagic on his main archer stack, place ents and rogues nearby, and then all you can do is shoot archers at them, assuming they survive the blue archers' attack from Ossir. Light magic is very powerful. I'm not even mentioning the ability to remove hypnosis or berserk. Let's not forget the extremely useful teleport spell (you can teleport archers further away from the enemy or ents closer, and at the expert level of light magic, you can even send them through castle walls – imagine what the ents would do there!). And regeneration is also very useful. If we take light unicorns, we can cast resurrection and regeneration on the rogues for free. And that's a big help. However, if we're fighting against necromancers, I would still take combat units because of the magic resistance aura.