Cast rate

Diablo II Notation Basic Class Skill Item Ally Quest Area Monster Tale Attribute Unit Animation Attack Damage Death Slows Target Freeze target Freeze length Half Freeze Not Frozen Stun length Knockback Walk/run FR/W Attack speed Weapon IAS Block rate FBR Cast rate FCR Hit recovery FHR Delay Some skills apply a delay when used: while the delay is active, that skill (in case of local delay) or any skill with a delay (in case of global delay) can be used. Nothing reduces the length of these delays but, since they begin at the action frame (the frame in the attack or casting animation in which the action is actually executed), increasing attack speed or cast rate will slightly reduce the interval between actions since the action frame will occur earlier in the animation: interval = action frame + delay. In LoD all delays were global, and there was no mechanic of local delays. The latter was introduced in D2R patch 2.4[1], and most delays were converted into local delays. It had the most impact on the Elemental Fire Druids. Class Skill Delay (Seconds) LoD (Global) D2R Local Global Amazon Poison Javelin 0.6 0.6 Plague Javelin 4.0 1.0 Immolation Arrow 1.0 1.0 Valkyrie 6.0 0.6 Assassin Shock Web 0.6 0.6 Blade Sentinel 2.0 1.0 Shadow Warrior 6.0 0.6 Dragon Flight 1.0 Shadow Master 6.0 0.6 Druid Werewolf 1.0 1.0 Firestorm 0.6 0.6 Werebear 1.0 1.0 Molten Boulder 2.0 1.0 Fissure 2.0 2.0 Volcano 4.0 4.0 Armageddon 6.0 Hurricane 6.0 Paladin Fist of the Heavens 1.0 0.4 Sorceress Fire Wall 1.4 1.4 Meteor 1.2 1.2 Blizzard 1.8 1.8 Hydra 1.6 Frozen Orb 1.0 1.0 The only exception is when skills with delays are cast by Chance to Cast items: multiple skills with delays can be cast. [2] However, while the skill delays are not applied, an 11 frame delay is applied from the action frame: during this delay no active skills can be used, although Scrolls of Identify and Town Portal placed in the belt can be used. [3] [4] This 11 frame delay does not interrupt an attack sequence if Chance to Cast is applied during that sequence. The delay can be applied from the action frame of any individual attack in the sequence, so if it's applied by an attack early in the sequence then the delay may end before that sequence ends. If multiple attacks in a sequence apply Chance to Cast, the delay is applied from the last attack in the sequence to apply it. [5] Reference Casting Delays (Arreat Summit) Onderduiker, Chance to Cast and curse tests (D2 Technical)