As an amusing aside: Fateweaver has the worst combat statline of any monstrous creature in the game, for one of the most expensive monstrous creatures in the game. He literally has 1 Attack at WS1 and I2. Still, with ML4 and 10 psychic powers from 6 different psychic disciplines (including some pretty good witchfires), a reroll on any D6 by his player per player turn, and rerolling warp storm results--it's rare that I don't get his points back while playing him. He's more durable than a mere 5W at T5 would make you think, honestly. A 4+ invuln rerolling 1s, plus whatever buffs he gets (like, say, Cursed Earth), always Swooping... fun fun!
What sphinx of plascrete and adamantium bashed open their skulls and ate up their brains and imagination? Imperator! Imperator!