I went in to colour challenge, and 3 matches in a row resigned because the opponent fielded an edited multicolour deck, so my questions are:

1. Are multi-colour decks allowed in colour challenge? I thought it was supposed to be single colour pre-constructed decks; and

2. Can you edit the decks for colour challenge somehow? When I edit the pre-constructed mono decks in my collection, it doesn't change the fielded deck that I get in colour challenge.

It seems unfair if some players can edit their decks and use multicoloured decks in colour challenge if others can't, and a bit silly anyway to allow those things that essentially make it a standard match...