Simple maths dictates that this means the Monk will use multiple-click attacks, with most combos based around three stages.

Leonard outlines how this will work; "So if you click three times in succession, some of them have three different things he does, some of them do two different things with more of a build-up, and you can mix and match. If you can switch skills really fast - this is where we get into the advanced playing skills - it's once again, the type of 'easy to learn, difficult to master' philosophy that we always try to bring to our game."
[...]
"We do have an eye towards the endgame play," Leonard explains. "We do have an eye towards replayability - we have the random quests - once you've played Diablo or Diablo 2 through once or twice, you've gotten all the content pretty much, in terms of quests. With our game, you'll have to play it a little bit more - to get that, we're going to have more layers to it so you can dig deeper. We are really addressing the endgame stuff so there's more interesting stuff to do."
[...]
"In a lot of ways, the art style improves through iterations. Like most of the things, we went through and sorted out what's working/what's not working. It's always about gameplay. Does it read well? Does it actually help what you're trying to accomplish? From an art point of view, it's always about being accessible.​