I'm trying to wrap my head around this whole slightly annoyingly arbitrary-differentiated system of saving throws. Presumably it's important for all party members to have as low saves vs spells as possible, since there are a lot of AoE spells that'll end up getting tossed your way. What about death and breath checks? I remember many nasty critters in BG1 would inflict stuff on frontliners that way, but are those still important for back row guys? (Do the categories' importance shift as you progress from level 1 to 40?) Are petri/poly and wand/whatever basically irrelevant?
Also, w.r.t. spells: Many spell descriptions specify "save vs spell" effects; some just refer to a "save" of an unspecified type, which I assume is vs spell; and some refer to a different type of save (say, death).
(1.): In the latter case, that's in lieu of saving vs spell, right? I.e., you only ever do one save, and (for spells) it's usu. vs spell?
(2.), assuming I understand (1.) correctly: What determines whether there's a check for Magic Resistance? I assume that, for a single-target attack-flagged spell, MR gives the target an extra potential "out", but am sort of unclear as to how it interacts with AoE spells (or AoE spells that targeted the thing with MR).
Thanks in advance for any insight!