|Release date||12 December 2005 (Update)|
|Champion of champions!|
Leon d'Cour is the Champion of Champions, and the last boss in the Champion's Challenge minigame. His special rule is that no items in inventory can be brought to arena, only equipped items are allowed. Out of the champions who use melee, Leon d'Cour is the most powerful, so it is recommended that players equip their best weapon and use a melee protection prayer against him
- Leon d'Cour is a play on Coeur de Lion (French for Lionheart), which is a nickname of King Richard I Plantagenet of England for his reputation as a great military leader and warrior. The three golden lions on Leon d'Cour's platebody is also the sigil of the House of Planteganet.
|Champion of Champions|
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