So as someone who's pretty new, what should I be doing? I joined neogaf line group but I'm reluctant to join anything because I imagine my low level is a hindrance to whatever content most people are running. I've got an Arthur/Mundus but am pretty overwhelmed by all the events/options... I've mostly stuck with single player. Some random questions:
For fusing, I know the poliwhirls you want to fuse into each other before fusing into your 'main' monster, but does that go for just the EXP monsters as well? How important is the same-color monster bonus exp thing? I've been leveling Arthur ahead of Mundus despite them mega-xp guys being dark in nature... was that bad?
Is there a low-level co-op room/levels to join in? The only event at "normal" I could find was a water temple easy quest.
Focus on leveling up your Arthur. Just give her any colour of turtles as the light ones are pretty rare. There are light ones that give EXP (green face) and ones that you sell for gold (silver/gold face) so be wary of that.
Feel free to join any EXP Bonus stages people are running or the daily EXP ones to help with that. You can also host your own if you like. They should all be easy enough for you (the weekend Shellmageddon is a bit harder). You should be able to max Arthur pretty quickly by doing that.
Once you have a max Arthur, join the daily Catalyst (sometimes called SS) Hard runs to grind for Sharls, Stoans and Divine Shards so you can evolve her. You want the light ones for her, which are on Mondays and Saturdays. Divines can show up in any of the daily Catalysts, but they are rare so that might take a while. You also get one as a reward for completing one of the co-op quest lines (check missions).
Another goal you can focus on while you are doing this is farming for Drakes in Mt Hotfoot. The dungeon is pretty easy so feel free to join those runs as well. Fuse Drakes together so you can eventually get a 90 luck one, which gives you a very high chance of a bonus drop so that makes farming for lower level content (EXP, stoans, sharls, divines) much quicker. Once you have a leveled up and evolved Drake with at least 20 luck you can start using that to farm Catalysts, EXP and more Drakes.