Add Nefarian Fear Ward action and trigger, along with Wild Magic trigger (#2412)

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## Pull Request Description
<!-- Describe what this change does and why it is needed -->
For Nefarian in BWL, this does the following:
Mages - Ice block if the mage class call "Wild Magic" happens
Priests - Buff the current target of Nefarian with Fear Ward

## Feature Evaluation
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## How to Test the Changes
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Go to Nefarian (id 11583) or his phase 1 form (id 10162) in BWL with a
mage and a priest bot.
During phase 2, the priest bot should cast fear ward on whoever nefarian
is targeting.
Wait for a mage class call. Once it happens the mage bot should cast ice
block (if its available) to remove the Wild Magic debuff.


## Impact Assessment
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tick) can help you here. -->
- Does this change increase per-bot/per-tick processing or risk scaling
poorly with thousands of bots?
    - - [x] No, not at all
    - - [ ] Minimal impact (**explain below**)
    - - [ ] Moderate impact (**explain below**)



- Does this change modify default bot behavior?
    - - [x] No
    - - [ ] Yes (**explain why**)



- Does this change add new decision branches or increase maintenance
complexity?
    - - [x] No
    - - [ ] Yes (**explain below**)



## AI Assistance
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AI assistance was used to explore how dungeon/raid strats are
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All code has been reviewed


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## Final Checklist

- - [x] Stability is not compromised.
- - [x] Performance impact is understood, tested, and acceptable.
- - [x] Added logic complexity is justified and explained.
- - [x] Any new bot dialogue lines are translated.
- - [x] Documentation updated if needed (Conf comments, WiKi commands).

## Notes for Reviewers
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src/Ai/Raid/BlackwingLair/Action/RaidBwlActions.cpp

@@ -38,3 +38,16 @@ bool BwlUseHourglassSandAction::Execute(Event /*event*/)
 {
     return botAI->CastSpell(SPELL_HOURGLASS_SAND, bot);
 }
+
+bool BwlNefarianFearWardAction::Execute(Event /*event*/)
+{
+    Unit* nefarian = AI_VALUE2(Unit*, "find target", "nefarian");
+    if (!nefarian)
+        return false;
+
+    Unit* victim = nefarian->GetVictim();
+    if (!victim)
+        return false;
+
+    return botAI->CastSpell("fear ward", victim);
+}

src/Ai/Raid/BlackwingLair/Action/RaidBwlActions.h

@@ -29,4 +29,11 @@ public:
     bool Execute(Event event) override;
 };
 
+class BwlNefarianFearWardAction : public Action
+{
+public:
+    BwlNefarianFearWardAction(PlayerbotAI* botAI) : Action(botAI, "bwl nefarian fear ward") {}
+    bool Execute(Event event) override;
+};
+
 #endif

src/Ai/Raid/BlackwingLair/RaidBwlActionContext.h

@@ -13,12 +13,14 @@ public:
         creators["bwl check onyxia scale cloak"] = &RaidBwlActionContext::bwl_check_onyxia_scale_cloak;
         creators["bwl turn off suppression device"] = &RaidBwlActionContext::bwl_turn_off_suppression_device;
         creators["bwl use hourglass sand"] = &RaidBwlActionContext::bwl_use_hourglass_sand;
+        creators["bwl nefarian fear ward"] = &RaidBwlActionContext::bwl_nefarian_fear_ward;
     }
 
 private:
     static Action* bwl_check_onyxia_scale_cloak(PlayerbotAI* botAI) { return new BwlOnyxiaScaleCloakAuraCheckAction(botAI); }
     static Action* bwl_turn_off_suppression_device(PlayerbotAI* botAI) { return new BwlTurnOffSuppressionDeviceAction(botAI); }
     static Action* bwl_use_hourglass_sand(PlayerbotAI* botAI) { return new BwlUseHourglassSandAction(botAI); }
+    static Action* bwl_nefarian_fear_ward(PlayerbotAI* botAI) { return new BwlNefarianFearWardAction(botAI); }
 };
 
 #endif

src/Ai/Raid/BlackwingLair/RaidBwlTriggerContext.h

@@ -11,11 +11,15 @@ public:
     {
         creators["bwl suppression device"] = &RaidBwlTriggerContext::bwl_suppression_device;
         creators["bwl affliction bronze"] = &RaidBwlTriggerContext::bwl_affliction_bronze;
+        creators["bwl wild magic"] = &RaidBwlTriggerContext::bwl_wild_magic;
+        creators["bwl nefarian fear ward"] = &RaidBwlTriggerContext::bwl_nefarian_fear_ward;
     }
 
 private:
     static Trigger* bwl_suppression_device(PlayerbotAI* ai) { return new BwlSuppressionDeviceTrigger(ai); }
     static Trigger* bwl_affliction_bronze(PlayerbotAI* ai) { return new BwlAfflictionBronzeTrigger(ai); }
+    static Trigger* bwl_wild_magic(PlayerbotAI* ai) { return new BwlWildMagicTrigger(ai); }
+    static Trigger* bwl_nefarian_fear_ward(PlayerbotAI* ai) { return new BwlNefarianFearWardTrigger(ai); }
 };
 
 #endif

src/Ai/Raid/BlackwingLair/Strategy/RaidBwlStrategy.cpp

@@ -10,4 +10,10 @@ void RaidBwlStrategy::InitTriggers(std::vector<TriggerNode*>& triggers)
 
     triggers.push_back(new TriggerNode("bwl affliction bronze", {
         NextAction("bwl use hourglass sand", ACTION_RAID) }));
+
+    triggers.push_back(new TriggerNode("bwl wild magic", {
+        NextAction("ice block", ACTION_RAID) }));
+
+    triggers.push_back(new TriggerNode("bwl nefarian fear ward", {
+        NextAction("bwl nefarian fear ward", ACTION_RAID) }));
 }

src/Ai/Raid/BlackwingLair/Trigger/RaidBwlTriggers.cpp

@@ -27,3 +27,24 @@ bool BwlAfflictionBronzeTrigger::IsActive()
 {
     return bot->HasAura(SPELL_BROOD_AFFLICTION_BRONZE);
 }
+
+bool BwlWildMagicTrigger::IsActive()
+{
+    return bot->getClass() == CLASS_MAGE && bot->HasAura(SPELL_WILD_MAGIC);
+}
+
+bool BwlNefarianFearWardTrigger::IsActive()
+{
+    if (bot->getClass() != CLASS_PRIEST)
+        return false;
+
+    Unit* nefarian = AI_VALUE2(Unit*, "find target", "nefarian");
+    if (!nefarian || !nefarian->IsInCombat())
+        return false;
+
+    Unit* victim = nefarian->GetVictim();
+    if (!victim)
+        return false;
+
+    return !botAI->HasAura("fear ward", victim);
+}

src/Ai/Raid/BlackwingLair/Trigger/RaidBwlTriggers.h

@@ -21,4 +21,20 @@ public:
     bool IsActive() override;
 };
 
+// Nefarian
+
+class BwlWildMagicTrigger : public Trigger
+{
+public:
+    BwlWildMagicTrigger(PlayerbotAI* botAI) : Trigger(botAI, "bwl wild magic") {}
+    bool IsActive() override;
+};
+
+class BwlNefarianFearWardTrigger : public Trigger
+{
+public:
+    BwlNefarianFearWardTrigger(PlayerbotAI* botAI) : Trigger(botAI, "bwl nefarian fear ward") {}
+    bool IsActive() override;
+};
+
 #endif

src/Ai/Raid/BlackwingLair/Util/RaidBwlHelpers.h

@@ -12,7 +12,10 @@ namespace BlackwingLairHelpers
 
         // Chromaggus
         SPELL_BROOD_AFFLICTION_BRONZE = 23170,
-        SPELL_HOURGLASS_SAND = 23645
+        SPELL_HOURGLASS_SAND = 23645,
+
+        // Nefarian
+        SPELL_WILD_MAGIC = 23410
     };
 
     enum BlackwingLairGameObjects