If Fateweaver suffers an unsaved wound he gets all paranoid that Tzeentch is trying to kill him off and retreats, if he fails his check.
It's the tradeoff for getting his cool abilities at a discount compared to a tooled up GDOT. You get his reroll power, but you get him having a chance of bugging out.
Automatically Appended Next Post: *Ninja'd, with an edit no less

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