Back to the basic(class)

[marcielle]

Quick and simple question. If you take 10 levels of a full casting advancement Prestige Class starting at level 6, then go back to the base class, do you gain spells and class features as if you had gained the 16th level of the base class, or the 6th level?
Thanks in advance.

[Waker]

Yep, you get the full spellcasting progression. What you don't get are the other class features, unless the PrC explicitly advances it, such as Familiars or Bardic Knowledge.

[Tyndmyr]

Quick and simple question. If you take 10 levels of a full casting advancement Prestige Class starting at level 6, then go back to the base class, do you gain spells and class features as if you had gained the 16th level of the base class, or the 6th level?
Thanks in advance.

Full casting advancement class advances as if you had the base class. So, that continues merrily without change. wizard5/incantatrix6/wizard 5 casts the same as wizard 16.

Class features are NOT typically advanced by the Prc. You pick those up where you left off. So, as per Wizard 10 in the above example.

[hushblade]

Spells: 16th level
Other class features: 6th level.
Edit: swordsaged

[Psyren]

Pay attention however to the PrC you pick, as some DO advance class features as well as spellcasting. The Druid PrC Planar Shepherd, for instance, advances your wild shape and your animal companion in addition to your spells. Radiant Servant of Pelor advances your Turn Undead and your spells.

(There's a reason these classes are considered overpowered...)

[Dusk Eclipse]

Radiant Servant of Pelor Overpowered? perhaps in a only undead game... AFAIK it was considered just a good Cleric class if you wanted healing or dusting undead... more like Master Specialist than Planar Shepherd.

[Cog]

Radiant Servant of Pelor Overpowered?
Not gamebreakingly so, but it's overpowered in the sense that it builds off an already strong class, costs very little to enter, and gives returns better than that already-good base class in trade.

[Dusk Eclipse]

Never really looked from that point of view, still I don't think it should be compared to the Planar Shepherd as the class covers both descriptions of overpowered.

[Psyren]

Never really looked from that point of view, still I don't think it should be compared to the Planar Shepherd as the class covers both descriptions of overpowered.

Hence why I said "overpowered" rather than "broken." RSoPs won't rip your campaign a new one (well, unless you're running exclusively undead maybe) but they are overpowered in the sense that "there is next to no trade-off here."