Early Game Stuff Get these early (ammo scavenger to help if you cant deny souls consistantly)
This will help with the mid game These will help you start the mid game without feeling behind (Make sure you get Improved reach ASAP, as it gives your one a blast radius of a small nuclear device)
Get these to remove the enemy These are where your One gets to go thermonuclear (Odds you can purchase all of these is slim to none, but shoot for spirit items that enhance your one)