Tactics for playing against a Necromancer.

:) If you play ranked games, reinforcing troops is prohibited by the rules.

Added 2 minutes later
Tell me more about the "Charm" ability. Did you try to charm unicorns and dragons, and it didn't work? Theoretically, you should have blocked the archers for two turns.

In general, you should record such a game and post it for everyone to see. :)