Discounting roleplaying reasons and flavour reasons (these are of course very important, but not pertinent to what I am asking about) why (mechanically speaking) would a player want his wizard to specialize? The costs seem to FAR outweigh the benefits at all but the lowest levels.
Costs:
Lose access to 2 schools of spells and the inability to use magic items duplicating effects of spells from these schools. That means the loss of access to 25%! of the spell selection and directly detracts from the wizard's main strength - versatility.
Benefits:
+2 bonus to spellcraft checks to learn spells of the chosen school.
+1 spell of the chosen schools specialty per spell level.
Really, it seems to me that the costs are much worse than the benefits and there is basically no mechanical incentive to specialize (even though I think specialized wizards are more interesting from a flavour and roleplaying point of view than generalists). How could this be rectified?
Perhaps something along the lines of:
Extra Benefits:
+1 bonus to save DC of spells of the chosen school cast by the specialist wizard
+1 bonus to saving throws against spells of the chosen school
Cast 0th level spells of the chosen school at will
Every 3 levels choose a spell the specialist can cast from the chosen school. The spell will become an innate spell-like ability usable 1/day. Spells requiring material components worth more than 1gp and/or any XP components cannot be chosen for this purpose. Selecting the same spell multiple times grants 1 additional use per day for each time the spell is selected.
Frankly, I am not sure even the above would be enough - the loss of access to 25% of all spells is simply such a huge blow to versatility.
Costs:
Lose access to 2 schools of spells and the inability to use magic items duplicating effects of spells from these schools. That means the loss of access to 25%! of the spell selection and directly detracts from the wizard's main strength - versatility.
Benefits:
+2 bonus to spellcraft checks to learn spells of the chosen school.
+1 spell of the chosen schools specialty per spell level.
Really, it seems to me that the costs are much worse than the benefits and there is basically no mechanical incentive to specialize (even though I think specialized wizards are more interesting from a flavour and roleplaying point of view than generalists). How could this be rectified?
Perhaps something along the lines of:
Extra Benefits:
+1 bonus to save DC of spells of the chosen school cast by the specialist wizard
+1 bonus to saving throws against spells of the chosen school
Cast 0th level spells of the chosen school at will
Every 3 levels choose a spell the specialist can cast from the chosen school. The spell will become an innate spell-like ability usable 1/day. Spells requiring material components worth more than 1gp and/or any XP components cannot be chosen for this purpose. Selecting the same spell multiple times grants 1 additional use per day for each time the spell is selected.
Frankly, I am not sure even the above would be enough - the loss of access to 25% of all spells is simply such a huge blow to versatility.