Nah, actually, try this.
If you're against orc/human/NE, go dreadlord, double crypts, and get about 6 ghouls (keep em coming) and go find his base. For your first levelup use the sleep spell and hit the enemy hero with it, then crowd your guys around him, kill him. Once that happens, its basically a free win.
Build order:
Crypt
Crypt
ziggurat
altar
ziggurat
ziggurat
ziggurat(optional)
Graveyard(optional--If the human goes snipers or the night elf goes huntresses.)
tomb of relics.
ziggurat(optional)
If youre up against UD just counter.
why altar so late?
judging by that build, you're no more than a 50% player =/