Based on the current mechanics of warbands
It is possible to use potions OSRS GP to increase these abilities. Ancient Warriors' pvp armour requires 40 defense. Void is the smallest non-degradable power armour at 42 and Fremmenik at 50. It begs the question: Is it worth the cost? EoC PKing is not available outside warbands.
Based on the current mechanics of warbands, combat level is more or less irrelevant because players carrying...