So the Dread Necro gets Undead Mastery as a class feature, giving his created minions +4 STR, +4 DEX, and +2HP per HD.
*If he takes the Corpsecrafter feat, does this add another +4 STR and +2 HP per HD?
- I'd say no on the +4/+4 STR, as they are both enhancement bonuses. The HP bonus, however, isn't specified in either place, so I'd allow a +4HP per HD. This has the side effect of making the 5 follow-on feats in the Corpsecrafter tree a touch more expensive for him, as he is taking a feat that doesn't really accomplish much for him just to gain access to the rest of the tree. Same for Augment Summoning, except he's out TWO feats at that point (Spell Focus & AugSummon) to no real effect, unless he's determined he MUST HAVE Imbue Summoning in order to add buffs to his summoned critters.
*Do undead followers or cohorts count against the number of controlled undead?
*Do summoned undead count against the number of controlled undead?
(looking thru all this, a properly-built Summoner of Undead can get mighty durn fearsome...)
I'll agree; Corpsecrafter itself isn't all that useful to the Dread Necromancer unless he really wants that +2 HP per die for his undead. One thing you might consider doing is to state that his Undead Mastery class ability also allows him to be considered as having the Corpsecrafter feat for the purposes of qualifying for other feats, prestige classes, etc. It's superior to the feat itself, and nixing the cost of that entry feat as a fringe benefit doesn't hurt anything.
Also, since Summon Undead isn't a Necromancy spell, Undead Mastery doesn't work on it. So Augment Summoning is still valid for those spells.
Also, since Summon Undead isn't a Necromancy spell, Undead Mastery doesn't work on it. So Augment Summoning is still valid for those spells.
D'OH!! Thanks for catching that...
Sooooooooooooooooooooo many possibilities! (And one Stat-Bank to hold them all!!)