Initial release of 20th Event Anniversary Skill (#8731)

db/re/item_db_etc.yml

@@ -69516,9 +69516,7 @@ Body:
     Type: Card
     SubType: Enchant
     Script: |
-       /* TODO implement skill
-       skill "All_EVENT_20TH_ANNIVERSARY",1;
-       */
+       skill "ALL_EVENT_20TH_ANNIVERSARY",1;
   - Id: 311442
     AegisName: aegis_311442
     Name: Perfect Ripe

db/re/skill_db.yml

@@ -18480,6 +18480,18 @@ Body:
     SplashArea: 5
     Duration1: 30000
     Status: Killing_Aura
+  - Id: 784
+    Name: ALL_EVENT_20TH_ANNIVERSARY
+    Description: RO 20th Anniversary Firecracker
+    MaxLevel: 1
+    TargetType: Self
+    DamageFlags:
+      NoDamage: true
+    Flags:
+      AllowOnMado: true
+    Cooldown: 3000
+    Requires:
+      SpCost: 1
   - Id: 1001
     Name: KN_CHARGEATK
     Description: Charge Attack

src/map/skill.cpp

@@ -12996,6 +12996,9 @@ int skill_castend_nodamage_id (struct block_list *src, struct block_list *bl, ui
 		}
 		clif_skill_nodamage(src, *src, skill_id, skill_lv);
 		break;
+	case ALL_EVENT_20TH_ANNIVERSARY:
+		clif_skill_nodamage(src, *src, skill_id, skill_lv);
+		break;
 
 	default: {
 		std::shared_ptr<s_skill_db> skill = skill_db.find(skill_id);