The champion scroll enhancer is a rewards enhancer that can be received from the Motherlode Maw's daily random reward if the player has at least level 115 Dungeoneering, and level 95 in all other non-elite skills. There is a chance of obtaining it by trading Wythien ten crystal motherlode shards. It can also be obtained by talking to Wythien to convert an unfocused reward enhancer to a Champion scroll enhancer. By converting an unfocused reward enhancer it will only have half of the charges, giving it 125 charges instead of 250.
When the enhancer is in the player's inventory, they will have a 20% increased chance of getting a champion's scroll drop for the Champions' Challenge minigame. Since scrolls have a drop rate of 1/5000, the enhancer increase the drop chance to 1.2/5000 (roughly 1/4166). It has 250 charges to start with, and one charge is used whenever you kill a creature that has a chance of dropping a champion's scroll. It will disappear when all the charges have been used up.
A champion scroll enhancer will not use a charge when you kill a member of a race whose champion has already been defeated (e.g. killing lesser demons and imps in the Karamja Volcano resource dungeon when you're trying to get one scroll and not the other).
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