As someone who first got into Mega/MCX through their Dragons line in the early 2000's, this line was a dream come true for me. I've collected a lot of different Dragons and other creatures from this brand over the years, and I can honestly say that these are some of the best. The parts are perfectly interchangeable with the plasma dragons from 10+ years ago, and the more recent universe sets, but the Breakout Beasts have a few added intricacies and points of articulation, especially with the addition of the removeable armour, spikes, claws, and horns, which means that even if you get multiples of the same set, you have the means to make each one unique. However, two things are holding me back from giving this a full five stars. As other users have pointed out, the slime comes in the same packaging as the pieces of the set, which is a nice throwback to the rubbery egg sac that older dragons used to come with, but also makes the sets very inconvenient to unpack and assemble. The fact that the sets are packaged like blind bags, so you can't tell which one you're getting, is also something of an annoyance. I really don't think it would hurt sales too much to put the slime in separate package to the rest of the parts, and allow buyers to be able to tell which set they're getting.