The 7th Champion's Quest is starting on April 1st, it will end on May 16th.

Parameters of the quest
Min castle: 1
Min rank: Col
Per Kin/one champ: Best per kindred (one champion per class)
Item/Spell restrictions: Yes (You can only use your own spells and items you earned yourself)
Purple only: Yes

Becoming a champion will grant you a soulbound champion weapon of your choice.
Finishing the quest and fulfilling all requirements will grant you a purple ring regardless of winning or not.

Stat/GA/Exp scrolls and gods/imps raising you is automatic disqualification.
Time is done by ingame time based on how long your character has been online.
Time will not be shown until the end of the quest.

For more information on Champion Quests see http://aranock.forumotion.net/t3089-champion-of-champions-quest