From 29ae22183bda084c2a9d3af85c04aefb58562e26 Mon Sep 17 00:00:00 2001
From: Bassoonian <iasperbassoonian@gmail.com>
Date: Fri, 18 Nov 2022 22:17:08 +0100
Subject: [PATCH] Mystical Power effect

---
 data/battle_scripts_1.s                 | 5 +++++
 include/constants/battle_move_effects.h | 3 ++-
 src/battle_ai_main.c                    | 4 ++++
 src/battle_tv.c                         | 1 +
 src/data/battle_moves.h                 | 2 +-
 5 files changed, 13 insertions(+), 2 deletions(-)

diff --git a/data/battle_scripts_1.s b/data/battle_scripts_1.s
index 9b7e3a070c..31251d62f2 100644
--- a/data/battle_scripts_1.s
+++ b/data/battle_scripts_1.s
@@ -414,6 +414,7 @@ gBattleScriptsForMoveEffects::
 	.4byte BattleScript_EffectDarkVoid                @ EFFECT_DARK_VOID
 	.4byte BattleScript_EffectSleepHit                @ EFFECT_SLEEP_HIT
 	.4byte BattleScript_EffectDoubleShock             @ EFFECT_DOUBLE_SHOCK
+	.4byte BattleScript_EffectSpecialAttackUpHit      @ EFFECT_SPECIAL_ATTACK_UP_HIT
 
 BattleScript_AffectionBasedEndurance::
 	playanimation BS_TARGET, B_ANIM_AFFECTION_HANGED_ON
@@ -4993,6 +4994,10 @@ BattleScript_EffectAttackUpHit::
 	setmoveeffect MOVE_EFFECT_ATK_PLUS_1 | MOVE_EFFECT_AFFECTS_USER
 	goto BattleScript_EffectHit
 
+BattleScript_EffectSpecialAttackUpHit::
+	setmoveeffect MOVE_EFFECT_SP_ATK_PLUS_1 | MOVE_EFFECT_AFFECTS_USER
+	goto BattleScript_EffectHit
+
 BattleScript_EffectAllStatsUpHit::
 	setmoveeffect MOVE_EFFECT_ALL_STATS_UP | MOVE_EFFECT_AFFECTS_USER
 	goto BattleScript_EffectHit
diff --git a/include/constants/battle_move_effects.h b/include/constants/battle_move_effects.h
index a2a633fb87..f6f109122a 100644
--- a/include/constants/battle_move_effects.h
+++ b/include/constants/battle_move_effects.h
@@ -395,7 +395,8 @@
 #define EFFECT_DARK_VOID                    389
 #define EFFECT_SLEEP_HIT                    390
 #define EFFECT_DOUBLE_SHOCK                 391
+#define EFFECT_SPECIAL_ATTACK_UP_HIT        392
 
-#define NUM_BATTLE_MOVE_EFFECTS             392
+#define NUM_BATTLE_MOVE_EFFECTS             393
 
 #endif  // GUARD_CONSTANTS_BATTLE_MOVE_EFFECTS_H
diff --git a/src/battle_ai_main.c b/src/battle_ai_main.c
index e141a45bf1..16a40de3d0 100644
--- a/src/battle_ai_main.c
+++ b/src/battle_ai_main.c
@@ -3942,6 +3942,10 @@ static s16 AI_CheckViability(u8 battlerAtk, u8 battlerDef, u16 move, s16 score)
         if (sereneGraceBoost)
             IncreaseStatUpScore(battlerAtk, battlerDef, STAT_ATK, &score);
         break;
+    case EFFECT_SPECIAL_ATTACK_UP_HIT:
+        if (sereneGraceBoost)
+            IncreaseStatUpScore(battlerAtk, battlerDef, STAT_SPATK, &score);
+        break;
     case EFFECT_FELL_STINGER:
         if (gBattleMons[battlerAtk].statStages[STAT_ATK] < MAX_STAT_STAGE
           && AI_DATA->abilities[battlerAtk] != ABILITY_CONTRARY
diff --git a/src/battle_tv.c b/src/battle_tv.c
index db51c3f4eb..5a2a96e862 100644
--- a/src/battle_tv.c
+++ b/src/battle_tv.c
@@ -301,6 +301,7 @@ static const u16 sPoints_MoveEffect[NUM_BATTLE_MOVE_EFFECTS] =
     [EFFECT_DRAGON_DANCE] = 1,
     [EFFECT_CAMOUFLAGE] = 3,
     [EFFECT_SLEEP_HIT] = 1,
+    [EFFECT_SPECIAL_ATTACK_UP_HIT] = 1,
 };
 
 static const u16 sPoints_Effectiveness[] =
diff --git a/src/data/battle_moves.h b/src/data/battle_moves.h
index c7f1064cc2..116c492944 100644
--- a/src/data/battle_moves.h
+++ b/src/data/battle_moves.h
@@ -13362,7 +13362,7 @@ const struct BattleMove gBattleMoves[MOVES_COUNT_Z] =
 
     [MOVE_MYSTICAL_POWER] =
     {
-        .effect = EFFECT_PLACEHOLDER, // EFFECT_SPECIAL_ATTACK_UP_HIT
+        .effect = EFFECT_SPECIAL_ATTACK_UP_HIT,
         .power = 70,
         .type = TYPE_PSYCHIC,
         .accuracy = 90,