MysticalWiki

Heroic Rescue

This skill works in conjunction with rescue and protect. Heroic rescue will let
you throw yourself between your friend and the enemy, making you receive the
full damage the opponent was about to do. Of course, there is a thin line 
between heroism and foolishness...

The classes that get the skill heroic rescue are:

warrior    : Level  60 (excellent)
ranger     : Level  55 (excellent)
paladin    : Level  47 (excellent)
swordsman  : Level  52 (excellent)