If a character already has uncanny dodge (see above) from a second class, the character automatically gains improved uncanny dodge instead, and the levels from the classes that grant uncanny dodge stack to determine the minimum level required to flank the character.

'''{{Anchor|Improved Evasion}} {{Ex}}:''' At 12th level a picaroon's evasion ability improves. This ability works like evasion, except that while the picaroon still takes no damage on a successful [[Reflex]] saving throw against attacks henceforth she henceforth takes only half damage on a failed save. A helpless picaroon does not gain the benefit of improved evasion.