SoulsSilhouette
Buddy Fan Club member
Speaking from the perspective of someone who is always struggling with space, the Moonstone Library set is one of the BEST sets that they've ever created. I wish mine still produced scrolls because I will not build a non-boost and they are hard to get in the trader, The only build that I love more is the Fire Chicken. For me, it has been worth every RR spent on upgrading them. Although a word of caution when upgrading a build.... Make sure the upgrade will give you what you want. I upgraded myself out of scrolls on my one evolve because as I upgraded it, it produced a T3 instead.