As is said into the guide , THE CREEP rw is a must - so basicaly once u have it - my advice will be keep farming sewers and give a try to duncraig , you will probably die alot there since barrels are OP , but once u get into it you`ll start die less and less and items will start to come.With end game gear your DC should be like 3-4 min clean up fully ( boss inc ) same for sewers. Once u become confident as a stormcaller and u have good dps and resists ( 80K +/ 90 AR ) my advice will be move on to TRIUNE and farm till u get the good cycles. Have fun - SC is an amazing class to play