"ZA WARUDO!" (also known as The World) is a phrase that is used by DIO when activating is stand's power, which is time stopping. It is also used to call his stand, which is also named The World (surprise, surprise).
Gáe Bolg: Barbed Spear that Pierces with Death (刺し穿つ死棘の槍ゲイ・ボルク, Sashi Ugatsu Shitoge no YariGei Boruku?, also translated as Spear of Impaling Barbed Death) is an attack focused on a single target, created by Lancer to suit his own style, that strikes a fatal blow that always pierces the opponent's heart and ruins their body from within with its thousand iron thorns. It literally freezes the mana in the air, and it can easily be perceived as a sure-kill technique by all those around simply from being charged with magical energy. Once Gáe Bolg's name has been called, the cursed spear reverses the nature of causality, the meaning of "cause and effect" in the order of things, to make it so the cause of the "lance being thrust" comes from the effect of the "opponent's heart being pierced" by it. It determines the opponent's fate simply through its use, an always fatal move that pierces the heart with one thrust. It is also possible for him to activate it without actively striking the heart. It is an attack on destiny itself, and while not a surprising fact due to its wielder's demi-god heritage, it is a top-notch power even with its seeming limitations in power due to being a step away from the Authority of the Gods.
Caladbolg II: The Fake Spiral Sword (偽・螺旋剣カラドボルグⅡ, Gi Rasen-kenKaradoborugu Ⅱ?, localizedas "Fake Helix Sword") is a modified version of the original Caladbolg using Reinforcement. Archer encountered the original sword at some point during his life, adding it to the numerous Noble Phantasms stored in Unlimited Blade Works and allowing him to modify it to improve its function as an arrow and suit his fighting style. He projects it to be used as an arrow rather than a sword, with the improvements aimed to make use of it as an A-rank Broken Phantasm. He chants the first line of Unlimited Blade Works' incantation before firing it and, despite being renamed with the "II", he still only chants "Caladbolg" to activate it. When utilized as a close-combat weapon, he thrusts it to pierce his opponent.