[Endoperez]

I usually build my rainbows around path boosters. If I have to choose between Air 3 or Fire 3, I have Fire at 3 to have access to Flame Helmets. If I can afford one path at 4, and my nations has Air mages, getting the Air boosters is well worth the cost. I might take E1 for a MA Ulm rainbow, just to be able to give her Earth Boots and then make Crystal Coins. As Ulm I'd also take Death and Fire for those Flaming Skulls; Fire at 3 to be able to do a Fires from the Sky if it's needed, and Death no lower than 2, to let me start with Skull Staff.