Spell Level Immunity (spell experts needed..)- possible spoilers ahead

[mbz]

I've just recently started playing BGII and TOB again, reviewed the spell guide and cheese guide by xyx userunfriendly and other posts and wondered there hasn't been a thread regarding spell level immunity of creaters posted in the forum.

Liches are immune to Level 5 (6?) spells and lower.
Demiliches are immune to Level 9 spells and lower.
Demogorgon is immune to Level 5 spells and lower.
Joneleth??

These critters are immune to breach and sunfire, which punches straight thru spell defense and magic resistence. (Liches by the way don't have too high MR, since I used Jaheira cast harm, and Minsc slashed it to bits before its contingency of defences builds up.) I heard that Demorgogon has an exceptionally high MR, and casting harm would have almost no chance of succeeding. (what about the monk's quivering palm? does it punch thru MR?)

I orginally planed to contingency 3 pierce shields against Demogorgon, but now that I have few instant kill spell selections above level 5, decided to scrap the idea.

What are the other creatures immue to spell level X and below??? This is important as it determines which spells my sorc to learn. Maybe delayed blast fireball isn't a bad idea...(but it does NOT punch through MR as perhaps in the older versions)

[Deadalready]

I don't think many monsters have spell level immunities, though many high magic resistance.

Undead and various other monsters in particular have a huge range of immunities to hold and death type spells.

[Crenshinibon]

I don't think that is correct because I remember spamming Skull Trap, on those creatures, as it does some nice damage at level 31.

[tangenboysj]

i know a bug about spells such as fireball,skulltrap,firecloud,deathfog and so on,when you cast contingency and choose the above spells choosing yourself as target,they can punch straight through MR.but take care,they can also punch through your own MR and hurt yourself.
There are four other spells as contingency(forgotten the name) at level 4,6,7,8 which has the same effect.