Round 1 - Chain Lightning on the hippogryphs, Meteor Shower on the archers and others, liches attack the angels and others, orcs attack the liches, wyverns fly to the range of the archers' full shot, I resurrect them, everything except the angels kill the wyverns.
Then I cast Mass Slow, archangels attack the angels, wyverns and champions attack the orcs, I shoot down the wyverns...
I get Armageddon: 4 archangels, 12 wyverns, 20 archers, 10 liches, 2 swordsmen, ~6 wyvern monarchs survive. Lightning strike on the wyvern and I finish off what's left.
Thanks for the game.