The class you describe pretty much requires two conditions to be met:chad878262 wrote:While limited you can definitely make a Drow C16/W4/MT10 with EDM and Auto-Still 0-6 (you'll only be able to cast 7th level spells). While it may be a pain to remove armor people already do so today, especially gishes that aren't in epics/don't have auto-still yet. Now, that Drow is going to have 6 CON because of the requirements for INT 14 (+3 item to allow 7th level spells), 16 WIS, 21 STR and 21 CON so DEX is left at 10 and CON at 6. However, you will be pretty much immune to everything so CON 6 isn't exactly much of a detriment, (extended) bears brings it to 10 and then you also have false life, gr. heroism and vampiric touch... Again, one race can achieve the required stats so this isn't necessarily a major issue (though UD players may disagree....) Honestly though, even without EDM being considered Divine Power gives you a massive STR bonus and full BAB for 6 mins (extended) and with Strength Domain you can fill level 4 and 5 slots with Extended Divine Power to always have it up. When you throw on FULL Cleric spell casting along with Wizard spells like Shadow Shield, Deez's Repulsive Shadow Barrier, Shield, Mirror Images, Greater Stoneskin, Gr. Heroism, etc. you can make an essentially invulnerable toon so far as buff and bash is concerned.
[*]Experience via RCR
[*]Pr-existing items to mule over, especially the two +3 Ability
Because otherwise, it might prove to be somewhat grueling experience to even reach level 2, and then hope that you can get your hands on the special items you require. But hey, perhaps the Underdark has become all sunshine and rainbows since I last played there. As for arcane spells, those can also be breached, so having caster level of 30 is not necessarily a salvation there.
As for Hitpoints of your Cleric 16/Wizard 4/Mystic Theurge 10:
Base: 124
+ 60 from Bear's Endurance: 184
+ 1d10 + 10 from False Life: 199.5~
+ 20 from Greater Heroism: 219.5~
When it comes to Vampiric Touch, does your character have Practiced Spell-caster Wizard?
+ 7d6 (Without) or + 9d6 (With): 244~ or 251~
A typical EDM Favored Soul has 246 with constitution modifier of 10. They can also easily cross-class into UMD and acquire much of the arcane defenses you have listed above via wands. Then they can raise their ability scores even higher than what your build has and have more feats to spare in general.
So where I am standing, the end results are not much different here. Except that I would still be in favor of the EDM Favored Soul. It is much easier to pull one off, and you are not forced to play as a Drow.
Anyhow, were you able to squeeze in Vampiric Feast into that gish build of yours?