Took a lot of PvE action before the epic boss showed up but he did. First go at him netted me one of the better reindeer - Vixen. Since got a Comet and 3 Cupids. Been using only free hits so need to wait a bit for my health to replenish before trying for more. I think this one is pretty fun, actually. I doubt I'll get the fully array of reindeer but it's fun to try as long as I don't have high expectations. Though I've never gotten through 20 Levels of Epic Boss. I miss when you got a prize for 15 - that was MUCH more doable!