Orion is Unbreakable. However, if he is beaten in combat, his essence will begin to fade. If Orion is beaten in combat, then for each point of combat resolution he loses by he also loses one wound. If Orion is within 6" of a wood the number of wounds he loses is reduced by one (so, if he loses the combat by one and is within 6" of a wood, he does not lose any wounds).
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