If you mean clicky (berserkers "summon" when they use up axe components, so not sure what you meant), the first summoned clicky item is from the Vest Throwing Knife from the new TS items in CoTF T2, it's 5th on the list. Next one is the Clay Bladed Daggers, 2nd to last, farmed from Foundation.
that list is missing at least one of the summoned items. the one from t4 VoA Mysterious Belt of Daggers Well Balanced Throwing Knife MAGIC ITEM NO TRADE PLACEABLE TEMPORARY Slot: RANGE AMMO Skill: Throwingv2 Atk Delay: 15 DMG: 53 also sorting by damage isnt really the best option, considering range-attacks trigger Frenzied Volley if you were actually trying to maximize ranged dps you'd want the fastest delay possible with comparable ratios (meaning the Vest Throwing Knife is clearly superior to the Axe of the Brute despite only being a .07 higher ratio).