Talk:The Watcher in the Sky/@comment-11176760-20151115001135/@comment-26158367-20151115115212

Pretty much all the arcana sans Stability and Turn Over are useful. (I never used Stability... and the turn overs are reserved for SR's and for those I only use Strong Turnover.) It just depends on what you want to achieve. If it's fast leveling, both Blessing and Training are the way to go. Depending on the rarity of both the material and the card to be upgraded, you may need only one (and then it doesn't matter which) or both. Succession is necessary for any evolved card you want to use after evo. I would focus on those three types early in the game. ATK and DEF are when you know you're going to keep a card and want to max her stats. All of this is pretty much self-explanatory after reading through the guides, though...

Also. Trust people when they say you WILL have an abundance of certain arcana at a certain point. It's not even that far into the game that you'll have enough slimes and/or upgrading arcana. As a beginner, R's are used to fill up team slots, but once that passes, you'll mostly use them as medal material. And then arcana aren't that expensive anymore at all. Keep useful R's for now (like the unleashers Romance, Seagull, Furinkazan or whatever else helps you) but you'll see that they will become obsolete fairly soon if you participate in events.