MjTh
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If an Orc starts with a lot of Fury, with its bonuses, it can eliminate half of the human army in just one turn. You can also find Rings that give a bonus to initiative, and equip the Ring of Fury along with the Amulet of Mastery. Then, focus on increasing pure Fury – you'll reach level 3 Fury right away. The downside of Fury is that it absorbs too much damage, so you end up without any bonuses. I recommend doing the above, as Attack and Defense won't always save you against a fast-moving enemy army.