Dowse

Find water.

                                       ,
                                    -===>)))o
                            /\      .   '| \
                            ||     /(__  /- )
                          |_/\_|  ,--  ---._|
                           \()/  /-   /     \
                            ||   >/-/-       |
                            ||   "  /  .     |
                            ||     /  /      |
                           (||\___/' /\_,  __(
                           `--...__./  |-\\\\\\
                            ||        /--\||||
                            ||       /   |///|
                            ||      /   /\   |
                            ||     |__/'  \__\
                            ||     ((((   (((((
                            ||     )))))   )))))
                      ______||_____(((((___(((((____
                     /      ||      | /     | /
/(_/(_/(_/(_/(_/(_/(/       ||  __./' \_ _./' \_
                   /        \/ ////---\_)/----\_)

Using dowse, a barbarian can create a pool of water. The skill requires a divining stick, which can be found in the Northern Plains.