The next level was more time consuming than difficult; there were two enemies, and the game hinted that the yellows were the weaker of the two. I spent a while building my village and placing towers with firewarriors around the edge closest to the green base, while amassing an army of preachers, warriors and firewarriors around a campfire on a causeway I had built towards a stone head. I was attacked several times by both greens and yellows, but managed to fend these off with relatively little loss - although once the green shaman did manage to place a swamp right in the middle of my settlement, leading to a few dead followers.
Once my army was a hundred-strong, I went off to the yellows, hoping the greens would not attack my relatively undefended village. As it turns out, they were in the middle of attacking the yellows as well. I was able to kill both enemy shamans, giving myself a load of mana for more destruction, and unlock the swamp spell before destroying the yellow village. My army had been halved in size, but so had my enemy.
I went back to the village and started expanding. The greens came by a few times on boats, but I was able to hit them with lightning quickly each time. I rebuilt my army, this time to 120, and then went walking along the side of the land which the greens hadn't touched. Halfway to the green settlement I was alerted that there was an invasion of my village - looking back I could see some invisible warriors had been infiltrating buildings, but they were, along with a couple of preachers, being killed by firewarrior towers.
Standing across from the greens, separated by a channel, I could see a vault of knowledge, containing hypnotise. This was going to be key. I raised a bridge and quickly crossed, then crowded my army around the vault while I worshipped it. The enemy shaman came near and I killed her with lightning, then I gained the power meaning that I could just get the greens to fight themselves. It didn't last long after that.
I'm getting closer to Bloodlust.