Have you ever gotten annoyed at a renevant which you wished to OSRS gold quit? Don't you hate when you're attempting to Abyss Runecraft and you get murdered by a renevant? I know I do. And here's my idea. The ability to conquer renevants from Level 7 to Level 156 (sorry, I don't understand, correct me if I am wrong) Past the Mage Arena where all of the PKer's used to be.
To begin: Speak to Kolodion (yes, he is here) to Begin the Renevant Challenge. You then struggle a random level renevant from level 7-60. After that round, you fight the rest of the renevants. After all the renevants have been defeated, Kolodion comes from the stadium and summons a Renevant Kree'arra/Graador/Tsutsaroth/Zilyana. In case you have a range level of 70, Kree'arra will come. In case you have a Power level of 70, then Graador will come. If you have a Prayer Level of 70, Tsutsaroth will come. If you've got a Hitpoint level of 70, Zilyana will come. In case you have all 4, then 1 of them will come randomly.
What is a minigame without rewards? Well, it's just a minigame. After Kolodion sends out you after you defeat the God Renevant, you'll be in an area similar to the cellar of the Mage Arena. There'll be 4 people standing there. Speak to one of these to receive your reward. (don't worry, you can come back and find the others should you overcome the challenge again)
Should you speak to the man wearing the Armadyl Armour, you will get a Kree'arra Trophy and also an Armadyl Bow. The trophy when rubbed, teleports you to the Armadyl region and enables you to be resistant to Armadyl enemies for 30 minutes. The Armadyl Bow appears like the crystal bow, just with the emblem of Armadyl. It's special shoots 5 arrows onto your oppnonent.
If you Speak to the guy in Bandos Armour, you will get the Graador Trophy and also a Bandos Battleaxe. The Graador Trophy is much like this Kree'arra Trophy, only it does the Bandos part instead and gives you immunity for buy RuneScape gold 30 minutes. The Bandos Battleaxe looks like a Dharok's Greataxe, just more historical. It's quite havy, therefore every other turn you can attack. No special though.