Sahuagin Flip
( Stormwrack, p. 93)[General]
You can safely attack and withdraw underwater.
Prerequisite
Dodge (PH) , DEX 13, Swim speed,
Benefit
After making a single melee attack, you can use the withdraw action (moving up to twice your swim speed) as a move action. You can only use this feat while swimming.
Normal
Withdrawing from combat is a full-round action (see page 143 of the Player's Handbook).