What tactics should I use with Dungeon against Stronghold in online play?

I personally play as the Dungeon faction, and I would crush everyone if it weren't for one thing: Dragons... In my opinion, if you take an artifact that allows you to resurrect Black Dragons (as far as I've read on the forum, such an artifact exists), then these are the strongest level 7 units in the game. In the case of Archangels, magic will help, Armageddon or regular magic, but the problem is in the online game via TCP/IP against Stronghold... there are other factions, but specifically Stronghold... The problem is this: as far as I remember, on turn 4-5 (sorry for the inaccuracy), you can build Ogres (if you're playing as a footman), and to build Dragons, you need all the buildings + level 2 magic... That is, by the time I have my first Dragon, he already has 6-8 Ogres, and more Rocs, because they are built faster than Minotaurs. The only salvation is Manticores, because there are not enough crystals left for Cyclops... BUT STILL, will 12 Manticores be effective against 6 Ogres and 3-4 extra Rocs, and in such a short time, the hero (I always take Alamar or Jeddite) doesn't have magic that well developed yet, regeneration helps, 6-8 Manticores can still be restored... Comment, suggest a tactic for playing online on a Medium (or Large) map against Stronghold... P.S. If Stronghold lets me develop and build Black Dragons and develop magic, then resistance is possible... but if he immediately takes 6 Behemoths and starts attacking...