i have read alot of things on forum, also i have read the post suggesting the reason of why it was refuse to be implement.
the example used was a lvl 4 fighter with one level in wizzard, and he will be able to cast level 1 buff last 10 minutes duration with extend spell feat.
but i must admit that this is true, however, this is and will never be a viable choice!
why? simple, first, ability grant from spell do overwrite with equipment! like shield, which replace shield ac, if you have shield already it will just take the higher one. second, most of the good buff are level dependent.. like shield of faith, or bark skin.. you get more benifit when achieve higher caster level.
third, and most important! most of these buff can be find on clickie.. or potion... or scroll or wand.....plus this game is and was never design to be a solo game.. i mean one person could never solo the entire dungeon. if they go 1 wiz/19 fighter, they will lose 6 hit point, 1 ab, and fort save..and additional lost to fighter skill level. such as jump or etc. it is totally not worth it..
not to mention that most of these buff can be broguht from npc..with some favor achievement..they last 30 minutes and do not expired when enter dungeon.. so basically what that post was suggestion was not valid, at least not anymore!
please give us practiced spell caster feat! right now splash any of the pure caster class seem to be really dumb and silly idea, since that effect almost everything..epsecially the spell pen..duration and power of certain spell... the key feature of dnd is multi class, and with prestige build within base classes and dependent on staying pure, it already encourage people enough to stay pure build.. i think maybe there should be some hope for those who want to build multi class character.. which will make the game more interesting..
p.s. forget one more thing... if they just go 1/19 they will lose the capstone bonus of each class..which usually very useful...unless it is melee tempest ranger or other class that don't have their capstone implement yet. thanks.