Dialyn ZZZ 2.4 Best Build: 400+ Impact & 60% CRIT Rate Guide

Dialyn, the S-Rank Physical Stun agent, hits banners November 26, 2025, in Version 2.4 Phase 1—running till December 17. Rock Yesterday Calls as her W-Engine, pair with 4pc King of the Summit Discs, prioritize Core > Special skills. She's built for Attack/Rupture squads, maxing Daze rotations. Aim for 400+ Impact and 60%+ CRIT Rate to unlock passives and squad buffs. She's your ticket to Shiyu Defense clears.

Dialyn's Arrival in Zenless Zone Zero 2.4: Quick Rundown

Who Is Dialyn, and What's Her Deal?

Picture this: S-Rank Physical Stun from the Krampus Compliance Authority, Size 01 female frame. At Lv.60, she packs ATK 758, Impact 110, CRIT Rate 19.4%, CRIT DMG 50%, kicking off with 60 Rally/Positive Reviews. She shines off-field, piling Daze through EX Special cycles. Hit 120 PR, and her Chains/Quick Assists morph into Ultimates. That Paper EX? Slaps on Malicious Complaint—+3s stun, +30-35% Stun DMG Multi.

Why She's Owning the 2025 Meta

Stack CRIT Rate past 50%, and you snag +2 Impact per 1% overcap (capping at +100), pushing 400+ Impact easy. She edges out Banyue in Attack/Rupture flexibility—data from early tests backs it. Banner drops 8pm PT/11pm ET on November 26, 2025; wraps December 17; patch ends January 7, 2026.

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Dialyn's Best W-Engines: Signature and F2P Picks

Signature Deep Dive—Yesterday Calls

Her S-Rank ride-or-die: Base ATK 713, +24% CRIT Rate. Off-field, +1.5 Energy Regen/sec. EX Special bumps Daze +9-16% (3 stacks, 6-10s refresh). Max stacks? +30% squad CRIT DMG for 40s. Tier 0 for Stun—fuels ~2/sec total Energy Regen, EX spam city.

F2P Lifesavers

Hellfire Gears edges Tier 0 too: ATK 684, +18% Impact; off-field +0.6-1.2 Energy Regen/sec, EX +10-20% Impact (2 stacks, 10s).
The Restrained: +6% Basic Attack DMG/Daze (5 stacks). Tier 0.
Precious Fossilized Core: +10-16% Daze on HP ≥50% (+10-16% more at ≥75%); ATK 594, +15% Impact. Tier 1.
Spectral Gaze: Impact +4-20%, Electric Aftershock shreds DEF 25%. Tier 1.
Six Shooter: EX Special +4-6.4% Daze/stack (max 6 every 3s). Tier 1.
Steam Oven: +2-3.2% Impact/10 Energy (8 stacks, 8s); ATK 594, +50% ER. Tier 2.

Signature for those squad buffs. F2P? Grab Hellfire Gears—no regrets.

Disk Drives and Stats: Nail the Endgame Setup

Drive Disc Stacks That Slap

4pc King of the Summit—CRIT Rate >50% means extra CRIT DMG on Stun EX/Chains. Pair with 2pc Woodpecker Electro for more CRIT Rate-to-Impact conversion. Swing Jazz 2pc (+Energy Regen) as alt. Or 2pc King alone for +6% Daze.

Main Stats, Subs, and Targets

Slot 4: CRIT Rate/Impact. Slot 5: Physical DMG. Slot 6: Impact/Energy Regen.
Subs: CRIT Rate/DMG%, ATK%.
Endgame benchmarks: Impact ≥400, CRIT Rate 60-65%, CRIT DMG 140-180%, ATK 2,200-2,500, Energy Regen >1.5/sec (total ~2/sec). Hammer Disc 6 Impact first, then Disc 4 CRIT Rate to ≥60%.

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Skill Priorities and Upgrade Path

Core Skill Tree Breakdown

Core Passive leads: Starts at 60 PR/Rally; 120 PR turns Chain/Quick Assist into Ultimates; CRIT Rate >50% = +2 Impact/1%; Paper EX adds +3s stun +30-35% Stun DMG Multi. Order: Core > Special > Basic/Chain > Dodge/Assist. Hit Lv 15/25/35/45/55/60.

EX Specials and Chains: The Real MVPs

EX Specials cost 25 Energy each, +7.5 PR, cycle every 6-8s: Rock (punch), Scissors (slice), Paper (debuff thrust +Suppression/Malicious Complaint). Heavy EX? +520% ATK or 650% Sheer Force with Attack/Rupture pals.
Basics: 4 frontal slashes (enhanced +2 hits after Rock/Scissors).
Martial Salute: 120 Rally charged Basic, +50% squad DMG 30s (always crits, +50% CRIT DMG).
Ultimate: Noggin Knocker—finger flick dash, massive Physical DMG.

Mindscape Cinema: Worth the Pull?

MC1: +16% PR gain/+0.1 Rally/sec, +1.5 Rally/EX; Inspire ignores 12-15% RES.
MC2: +20% Stun DMG Multi on suppressed, +25% squad DMG suppressed.
MC4: Entry +20 Energy (180s CD), Inspire +500 ATK.
MC6: Upgraded Chain +300-480% Dialyn ATK Physical DMG/sec (12 triggers, EX type, 1 ally).
Chase MC2/MC4/MC6 first—game-changers.

Killer Teams for Dialyn in 2.4

Hypercarry Setup #1

Dialyn (Stun), Evelyn (Attack), Astra/Lucy/Caesar (Support), Snap (Bangboo; Cryboo/Rocketboo/Knightboo alts). Get Lost triggers Evelyn's Ultimate.

Rupture Flex

Dialyn (Stun), Yixuan (Rupture), Lucia/Astra/Pan Yinhu/Caesar/Lucy (Support), Excaliboo (Bangboo; Devilboo/Booressure/Resonaboo alts).

F2P? Dialyn (Stun), Billy (Attack), Nicole (Support), Bagboo (Bangboo; Sumoboo alt). Or Soldier 11/Dialyn/Lucy. EX/Ult pumps +50% CRIT DMG +extra DMG with Attack/Rupture; Overwhelmingly Positive adds +50% squad DMG 15s, extendable.

Rotation and Playstyle: Smooth as Silk

Your Step-by-Step Loop

1. Basics/EX to stack PR/Rally.
2. Off-field EX cycle: Rock → Scissors → Paper (6-8s; Paper for Suppression).
3. Quick Assist on Daze.
4. Martial Salute/Noggin Knocker at 120 Rally (+Inspire).
5. Chain flips to ally Ultimate; Get Lost auto-Ults.

Invuln frames on EX/Chain/Ult. Pair Attack/Rupture for +50% squad DMG, 15-30s windows.

Synergies: Who Buffs Her Best?

Prime Supports

Lucia, Astra, Lucy, Caesar, Pan Yinhu—Ult triggers galore.

Bangboo Buddies

Bagboo, Sumoboo, Snap, Cryboo, Rocketboo, Knightboo, Excaliboo, Devilboo, Boopressure, Resonaboo, Bangvolver, Sharkboom. Daze/Physical synergy. 2.4's S-Rank Birkblick? Viable.

Buff Overlaps

EX/Ult: +50% CRIT DMG/extra DMG. Inspire skips RES (MC1). Overwhelmingly Positive: +50% squad DMG.

Pitfalls to Dodge—like, Actually

Don't sleep on Paper EX cycles. CRIT Rate ≥60% mandatory. Always Attack/Rupture duo. Impact ≥400, no excuses.
Max that 120 Rally. Quick Assist every Daze.

Resources? Promotion Lv1-60: Basic Stun Cert Seal x4, Advanced x32, Buster x30, Denny 800k (total 3.7M+). Skills: Basic Physical Chip x5-25, Advanced x15-75, Specialized x50-250, Hamster Cage Pass x1-5, Denny 500k-2.9M+. Core: Exuvia of Refinement x9, Higher Dimensional Data-Stealth Phantom x60, Denny 400k-405k.

Endgame Reality Check: Shiyu and Tiers

Off-field Daze machine for Attack/Rupture carries—stun extension, team buffs. Beats Banyue in versatility (both shine M0S1, per tests).

Tier 0 Stun. Future-proof for 2.4.

Patch Notes and Pull Timing

NPC tease in 2.3 (Oct 11, 2025 announce); full kit Nov 26-Dec 17. Pull Phase 1—she's the versatile enabler, not some niche stun.

FAQ

Best W-Engine for Dialyn in ZZZ 2.4?
Yesterday Calls (Tier 0: +24% CRIT Rate, +30% squad CRIT DMG at 3 stacks).

Endgame Dialyn build?
400+ Impact, 60-65% CRIT Rate, 140-180% CRIT DMG; 4pc King of the Summit + 2pc Woodpecker.

Top 2.4 teams?
Attack: Dialyn/Evelyn/Astra/Snap. Rupture: Dialyn/Yixuan/Lucia/Excaliboo. F2P: Dialyn/Billy/Nicole/Bagboo.

Skill priority?
Core > Special > Basic/Chain > Dodge/Assist.

F2P build?
Hellfire Gears, Swing Jazz 2pc, Billy/Nicole, Bagboo.

Best Bangboo?
Snap/Excaliboo/Bagboo—Daze/Physical gold.