Some of the most fun time I've had in MD was during HCs, and I'm all but a fighter.
There are two problems with HC, first there aren't enough participants, second it takes to long and during it no spells can be cast.
The first problem can be split in two problems, there are more winners than there are new players, and we're out of players who haven't won HC yet. The first part has been pretty much solved by stopping HC or mp3 and reducing the amount of winners to only those who reach a certain score (although decreasing the maximum amount of winners to 3 might be good.) The second part however is a bit more difficult, unless someone is able to bring a few dozen of new players too MD we will have to get new participants from within our community. To do so I think a full reset would be fairest, but a partial reset might work as well, combined with a [url="http://magicduel.invisionzone.com/topic/13071-discussion-about-hc-and-bhc/#entry123741"]ranking system like Fyrd proposed[/url] to be sure we won't be out of players again. It's either that or putting HC on a hold completely for a few years.
The second problem will be mostly solved when we have more participants, but can also be solved completely by removing the spell restrictions during HC. Spells nowadays are so common anyone can get them. If this isn't enough then they could be restricted only to players who have more than a certain amount of score/heads.
P.s. MP5 is now saver than it has been in a long time, so I recommend everyone who has been waiting to come up now, so you'll be able to get accustomed to it before a new danger arises.