Both the terms of service and community standards forbid giving others access to your account. I do not think they'll allow this contest.
As an off topic I would warn others of participating in such an event. I have seen other websites where people let someone log into their account for various reasons. The account owner would then report the person for "hacking" and get an IP ban placed under them. It's a subtle bait-and-switch that can really get someone in trouble if the administration finds out.
http://wiki.spiralknights.com/Community_Standards#Account_Security
Both the terms of service and community standards forbid giving others access to your account. I do not think they'll allow this contest.
As an off topic I would warn others of participating in such an event. I have seen other websites where people let someone log into their account for various reasons. The account owner would then report the person for "hacking" and get an IP ban placed under them. It's a subtle bait-and-switch that can really get someone in trouble if the administration finds out.