You mainly wanna rush Merc Mag asap to do great spirit damage, then build E Shard and Boundless to buff your sleep damage. Surge and Rend are also great pickups from farming alongside any defensives or other items you need. Pick up enduring alongside the first point into your 2 to gank and rotate quickly with your cc. Hazes ammo scales with Spirit alongside sleep wakeup time and damage, her smoke bomb and bullet dance time is upgraded too.