Type: General
Source: Dragon #323
You have been trained to swim even in the heaviest armor.
Prerequisite: Swim 4 ranks.
Benefit: When proficient with the armor you wear, you suffer only half that armor's armor check penalty to Swim checks. Thus, if you are proficient with heavy armor and attempt to swim wearing banded mail, you suffer only a -3 penalty on Swim checks rather than the usual -12.
Normal: Double the normal armor check penalty is applied to Swim checks.