Ughbash wrote:

udalrich wrote:

DM_aka_Dudemeister wrote:

The ability overlaps but doesn't stack (two evasions do not add to Improved Evasion)

I think it's fairly common for evasion to include a clause along the lines of "if the character already has evasion from another class, then she instead gains improved evasion". That would be specific to the classes involved and not a general rule.

That statement is somewhat common in Prestige classes, but very rare (if it exists at all) in base classes.

Actually I can't think of a single Prestige class or base class, off hand, that has that line for Evasion. Every occurrence of Uncanny Dodge on the other hand, includes a similar line.

(Though I don't have any of my old 3.5 books anymore, and I'd be happy to be proven wrong about the absence of that line in all occurrences of Evasion)

Complete Adventurer "dungeon Delver"

Sample Text:
Evasion (Ex): Beginning at 4th level, a dungeon delver
can avoid damage from certain attacks with a successful
Reflex save. See the monk class feature, page 41 of the
Player’s Handbook.
If a dungeon delver already has evasion, he gains
improved evasion instead, allowing him to
avoid damage from certain attacks with
a successful Reflex save and take only
half damage on a failed save. See the
monk class feature, page 42 of the Player’s
Handbook.