# Rogue's Preparation Specialization turns your Ultimate into a full cooldown-reset engine

Casting your Ultimate Skill while running the Preparation Specialization both cuts 4 seconds off the Ultimate's own cooldown AND resets every other skill's cooldown, rewarding fast-cycling, high-Energy-spend playstyles that can trigger the Ultimate unusually often.

Diablo IV patch 3.2.1. Category: uptime loop. Evidence: Confirmed.

## Detail
This creates a positive feedback loop distinct from simple CDR stacking: the faster you can re-trigger the Ultimate, the more often you get free resets on your other cooldowns, which in turn helps you re-trigger the Ultimate again sooner. 3.2.1 specifically fixed a bug where Preparation was not granting its intended Damage Reduction component, so the defensive half of this loop is newly reliable this season.

## Why it works
The Specialization directly ties Ultimate-cast frequency to global cooldown state rather than routing through the normal inverse-multiplicative CDR formula, making it a fundamentally different (and more snowball-prone) uptime mechanism than stacking CDR affixes.

## Numbers
4 seconds of self-cooldown-reduction per Ultimate cast, plus a full reset of all other skill cooldowns.

## How to use it
Build Energy generation and Ultimate-cooldown reduction together (rather than either alone) to maximize how often this reset loop triggers per minute of gameplay.