* spell_waterwall
if ( gem({water},{200}),
 { goto ({cast});
 },
 { goto ({failed});
 } );
label(failed);
echo({me},{You don't have enough water mana.});
goto({end});
label(cast);
do({:concentrates for a moment.});
wait({20});
do({:invokes a wall of water right above %target%.});
oecho(%target%,{%target% is crushed by a magic wall of water.});
hurt(%name%,50);
goto({end});
label(end);