I think it's okay, but I'm not quite sure about it, and I think it only works on medium maps. I've only seen it, never used it. :P
1. Two miners + swordwrath.
2. Send swordwrath to middle, make first two miners pray and get Rage.
3. Make the two miners mine and as the other two miners come in, make them mine as well.
4. Get another sword, and garrison if necessary until Rage is activated.
5. Make tons of miners and swords and take over middle, harassing until the enemy makes a castle archer or gives up.
From here I don't know what they do but what I seem a lot of is winged archers and ghosts (so back to the albowtross mass + ghost harassment).
IMO it's just a safer opening to get right to ghost harassing, but what do you think and is it worthwhile?