User blog comment:MP999/Event Horizon Tournament Signup/@comment-25968390-20160628192827/@comment-27190018-20160628194817

You can nominate a second, but you have to wait for four characters before you nominate again. Characters are not subject to the qualifications once I give them the "confirmed" status, meaning outside fights won't disqualify them.

If absolutely necessary, people can nominate thirds with my permission, but not only does the 4-man wait still apply, but I highly doubt that will happen anyways.