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Server-side cross-class wildcard pass for several talents that were
previously locked to a single SpellFamilyName, plus a server+client
Warrior stance bypass and a Paragon-aware Mirror Image rebuild that
mimics the owner's spellbook instead of stock Frostbolt/Fire Blast.
Talent expansions (Paragon owners only; stock classes unchanged):
- Cold Snap (11958): resets cooldown of any Frost-school spell.
- Nature's Swiftness (17116, 16188) + Predator's Swiftness (69369):
instant-cast on any Nature-school spell.
- Vampiric Embrace (15286): leech-heals from any single-target
Shadow-school spell.
- Fingers of Frost (44543/44545) + Frostbite (11071/12496/12497):
proc from any Frost-school chill effect (DK Howling Blast / Icy
Touch / Chains of Ice, Hunter Frost Trap, Shaman Frost Shock,
cross-class chill auras via SPELL_AURA_MOD_DECREASE_SPEED).
- Maelstrom Weapon (53817): now also affects Mage Fireball (133),
Frostbolt (116), and Arcane Blast (30451) at every rank, both
for cast-time/cost spellmod and for stack consumption.
Warrior stance bypass:
- SpellInfo::CheckShapeshift returns SPELL_CAST_OK whenever a
Paragon caster hits any Stances!=0 spell (no SpellFamilyName
gate). Stock classes still see the regular form rules.
- Client side: patch-enUS-4.MPQ now zeroes Stances on every
SPELLFAMILY_WARRIOR Spell.dbc row (105 spells) so the engine's
pre-cast "Must be in Battle/Defensive/Berserker Stance" check
no longer eats CMSG_CAST_SPELL packets for Paragons. Server
bypass enforces the actual decision; stock Warriors still
error mid-cast if they actually click while out of stance.
- patch-enUS-5.MPQ Lua tooltip post-processor recolors and
appends "(Paragon: bypassed)" to "Requires *Stance*" lines on
Warrior abilities, plus Paragon notes on Maelstrom Weapon and
Mirror Image tooltips. Action-bar UseAction wrapper routes
stance-gated Warrior spell clicks through CastSpellByName so
the stance-zero DBC + server bypass actually run.
Mirror Image:
- npc_pet_mage_mirror_image rebuilds its spell list from the
Paragon owner's spellbook on InitializeAI AND JustEngagedWith
(the second pass + events.Reset clears any stale events the
CasterAI base scheduler may have queued from stock 59637 /
59638 entries before the rebuild ran).
- Curated filter keeps single-target damaging spells (instant,
cast-time, or channeled) with a base cooldown <=10s, with the
"damaging" definition expanded to include
SPELL_EFFECT_TRIGGER_MISSILE and
SPELL_AURA_PERIODIC_TRIGGER_SPELL so Arcane Missiles
qualifies. Rejects passives, AoE, melee/ranged weapon strikes,
item/reagent/stance/equip-gated, and lower spell ranks.
- UpdateAI picks a random spell from the curated list per cast
and reschedules the next pick by the actually-cast spell's
cast/channel duration + 750ms breather, so a 5s Arcane
Missiles channel waits its full duration before re-rolling
rather than visually looping across four images.
Helpers:
- Unit::IsParagonWildcardCaller / Unit::ParagonFamilyMatches
used by Spell.cpp, SpellInfo.cpp, Player.cpp,
SpellAuraEffects.cpp, and the spell scripts.
- SpellInfo::CheckShapeshift signature gains an optional caster
pointer; all call sites updated.
SQL migrations under modules/mod-paragon/data/sql/db-world/updates/:
- 2026_05_11_01.sql Vampiric Embrace spell_proc relax + script
gate (CheckProc enforces stock for non-Paragon).
- 2026_05_11_02.sql Maelstrom Weapon spell_proc relax (initial,
superseded by _04 below for stack-consumption fix).
- 2026_05_11_03.sql Fingers of Frost / Frostbite spell_proc relax
and spell_script_names binding.
- 2026_05_11_04.sql Maelstrom Weapon spell_proc fixup: restore
SpellPhaseMask=1 (CAST) and AttributesMask=8
(REQ_SPELLMOD); previous _02 set 8/0 which
silently dropped every proc event.
Diagnostics from this debugging session demoted from LOG_INFO to
LOG_DEBUG (silent at default info level) so production logs stay
quiet but the probes remain available for reproducing future
regressions: pet_mage.cpp MirrorImage probe/kept/rebuild/init/
engage/cast lines and SpellInfo.cpp CheckShapeshift bypass line.
CLIENT-PATCHES.md updated to document the new Warrior stance DBC
patcher (_patch_spell_dbc_stances.py), the spell-tooltip post-
processor and stance UseAction wrapper in patch-enUS-5.MPQ, and
the Mirror Image / Maelstrom Weapon Paragon notes.
Co-authored-by: Cursor <cursoragent@cursor.com>
AzerothCore
Build Status
Introduction
AzerothCore is an open-source game server application and framework designed for hosting massively multiplayer online role-playing games (MMORPGs). It is based on the popular MMORPG World of Warcraft (WoW) and seeks to recreate the gameplay experience of the original game from patch 3.3.5a.
The original code is based on MaNGOS, TrinityCore, and SunwellCore and has since then had extensive development to improve stability, in-game mechanics, and modularity to the game. AC has also grown into a community-driven project with a significant number of contributors and developers. It is written in C++ and provides a solid foundation for creating private servers that mimic the mechanics and behavior of the official WoW servers.
Philosophy
Our main goal is to create a playable game server, offering a fully working in-game experience.
Here are the main points we focus on:
-
Stability
- We make sure all changes pass the CIs before being merged into the master branch.
-
Blizzlike content
- We strive to make all in-game content to be blizzlike. Therefore we have a high standard for fixes being made.
-
Customization
- It is easy to customize your experience using modules.
-
Community driven
- AzerothCore has an active community of developers, contributors, and users who collaborate, share knowledge, and provide support through forums, Discord channels, and other communication platforms.
Modules
AzerothCore is designed to be highly modular, allowing developers to extend and customize the game to suit their preferences or create unique gameplay experiences. This flexibility enables the addition of custom features, content, and modifications.
We have a lot of modules already made by the community, many of which can be found in the Module Catalogue.
Installation
Detailed installation instructions are available here.
Contributing
AzerothCore can also serve as a learning resource for aspiring developers who want to understand how WoW servers work, how MMORPGs are structured, how game server emulators are created, or to improve their C++ and SQL knowledge.
If you want to contribute to the project, you will find a lot of resources that will guide you in our wiki.
We also recommend you read our Contributor Covenant Code of Conduct.
Feel free to join our Discord server.
Click on the "⭐ Star" button to help us gain more visibility on Github!
Authors & Contributors
The project was born in 2016 based on SunwellCore. Unfortunately, SunwellCore was published without any git history, so on git there are no credits for all the contributors before 2016.
You can check the authors file for more details.
Important Links
- Doxygen documentation
- Website
- AzerothCore catalogue (modules, tools, etc...)
- Our Discord server
- Our wiki
- Our forum
- Our Facebook page
- Our LinkedIn page
License
- The AzerothCore source code is released under the GNU GPL v2
It's important to note that AzerothCore is not an official Blizzard Entertainment product, and it is not affiliated with or endorsed by World of Warcraft or Blizzard Entertainment. AzerothCore does not in any case sponsor nor support illegal public servers. If you use this project to run an illegal public server and not for testing and learning it is your own personal choice.
Special thanks
JetBrains is providing free open-source licenses to the AzerothCore developers.
