This spell [mwcard=MWBG1J04]Raincloud[/mwcard] costs 3 spellbook points.
Level 1 Air is a 2x cost for the Druid so it costs 2SBP's
Level 1 Water is a 2x cost for the Druid so it costs 1SBP.
Added together for a total of 3SBPs.
My understanding also is that a level 2 water spell would not be trained at all... not even the first level of the two levels... so (please correct me if I'm wrong) the level 2 water spell would cost a Druid more in spellbook points than a level 2 spell that was one level of water and one level of something else that is not opposed... like the Raincloud. This doesn't make sense to me.
I agree entirely, but one look at the official spellbook builder will show you that Raincloud costs the Druid 3 spell points. The key thing here is that the Druid's not trained in Level 1 Water Spells, but rather is trained in Level 1 of the Water School. So she is only interested in the levels of the individual schools involved, not the level of the spell.
It would make some sense if the first level of the water school, for a spell like Elemental Wand, cost her 1 point and all other levels in the water school cost double, but that's not how they decided to do it. I believe the thinking was that this way is "simpler" and "easier to determine at a glance."
I'm really regretting getting this thread off track for my own geeky tangent and apologize to everyone.