diff --git a/db/re/skill_db.yml b/db/re/skill_db.yml
index 6136c4ce41..a59998bcc9 100644
--- a/db/re/skill_db.yml
+++ b/db/re/skill_db.yml
@@ -7663,7 +7663,6 @@ Body:
     Type: Weapon
     TargetType: Attack
     DamageFlags:
-      IgnoreDefense: true
       IgnoreFlee: true
     Flags:
       TargetTrap: true
@@ -24520,7 +24519,7 @@ Body:
     TargetType: Attack
     Range: 1
     Hit: Single
-    HitCount: 5
+    HitCount: -5
     CopyFlags:
       Skill:
         Reproduce: true
diff --git a/src/map/battle.cpp b/src/map/battle.cpp
index dd99bc3f8c..0a1bc9173b 100644
--- a/src/map/battle.cpp
+++ b/src/map/battle.cpp
@@ -5139,6 +5139,9 @@ static int battle_calc_attack_skill_ratio(struct Damage* wd, struct block_list *
 			//ATK [{(Skill Level x 150) + 300} x Caster's Base Level / 120]% + ATK [(AGI x 2) + (Caster's Job Level x 4)]%
 			skillratio += -100 + 300 + 150 * skill_lv;
 			RE_LVL_DMOD(120);
+			skillratio += sstatus->agi * 2;
+			// If 4th job, job level of your 3rd job counts
+			skillratio += (sd ? (sd->class_&JOBL_FOURTH ? sd->change_level_4th : sd->status.job_level) * 4 : 0);
 			break;
 		case GC_VENOMPRESSURE:
 			skillratio += 900;
@@ -5291,8 +5294,11 @@ static int battle_calc_attack_skill_ratio(struct Damage* wd, struct block_list *
 			RE_LVL_DMOD(100);
 			break;
 		case LG_SHIELDPRESS:
-			skillratio += -100 + 200 * skill_lv + sstatus->str;
+			skillratio += -100 + 200 * skill_lv;
 			if (sd) {
+				// Shield Press only considers base STR without job bonus
+				skillratio += sd->status.str;
+
 				if( sc != nullptr && sc->getSCE( SC_SHIELD_POWER ) ){
 					skillratio += skill_lv * 15 * pc_checkskill( sd, IG_SHIELD_MASTERY );
 				}
@@ -6300,19 +6306,6 @@ static int64 battle_calc_skill_constant_addition(struct Damage* wd, struct block
 				atk = 40 * pc_checkskill(sd, RA_RESEARCHTRAP);
 			break;
 #endif
-		case GC_COUNTERSLASH:
-			atk = sstatus->agi * 2 + (sd ? sd->status.job_level * 4 : 0);
-			break;
-		case LG_SHIELDPRESS:
-			if (sd) {
-				int damagevalue = 0;
-				short index = sd->equip_index[EQI_HAND_L];
-
-				if (index >= 0 && sd->inventory_data[index] && sd->inventory_data[index]->type == IT_ARMOR)
-					damagevalue = sstatus->vit * sd->inventory.u.items_inventory[index].refine;
-				atk = damagevalue;
-			}
-			break;
 	}
 	return atk;
 }
@@ -6641,6 +6634,7 @@ static void battle_calc_defense_reduction(struct Damage* wd, struct block_list *
 		case RK_DRAGONBREATH_WATER:
 		case NC_ARMSCANNON:
 		case GN_CARTCANNON:
+		case MO_EXTREMITYFIST:
 			if (attack_ignores_def(wd, src, target, skill_id, skill_lv, EQI_HAND_R) || attack_ignores_def(wd, src, target, skill_id, skill_lv, EQI_HAND_L))
 				return;
 			if (is_attack_piercing(wd, src, target, skill_id, skill_lv, EQI_HAND_R) || is_attack_piercing(wd, src, target, skill_id, skill_lv, EQI_HAND_L))
@@ -7369,18 +7363,14 @@ static struct Damage battle_calc_weapon_attack(struct block_list *src, struct bl
 #endif
 			battle_calc_skill_base_damage(&wd, src, target, skill_id, skill_lv); // base skill damage
 
-		int64 ratio = 0;
-
 #ifndef RENEWAL
-		ratio = battle_calc_attack_skill_ratio(&wd, src, target, skill_id, skill_lv); // skill level ratios
+		// Skill ratio
+		ATK_RATE(wd.damage, wd.damage2, battle_calc_attack_skill_ratio(&wd, src, target, skill_id, skill_lv));
 
-		ATK_RATE(wd.damage, wd.damage2, ratio);
+		// Additive damage bonus
+		ATK_ADD(wd.damage, wd.damage2, battle_calc_skill_constant_addition(&wd, src, target, skill_id, skill_lv));
 #endif
 
-		int64 bonus_damage = battle_calc_skill_constant_addition(&wd, src, target, skill_id, skill_lv); // other skill bonuses
-
-		ATK_ADD(wd.damage, wd.damage2, bonus_damage);
-
 #ifdef RENEWAL
 		if(skill_id == HW_MAGICCRASHER) { // Add weapon attack for MATK onto Magic Crasher
 			struct status_data *sstatus = status_get_status_data(src);
@@ -7452,11 +7442,6 @@ static struct Damage battle_calc_weapon_attack(struct block_list *src, struct bl
 			if( is_attack_left_handed( src, skill_id ) ){
 				wd.damage2 += wd.masteryAtk2;
 			}
-			// Apply bonus damage
-			wd.damage += bonus_damage;
-			if( is_attack_left_handed( src, skill_id ) ){
-				wd.damage2 += bonus_damage;
-			}
 
 			// CritAtkRate modifier
 			if (wd.type == DMG_CRITICAL || wd.type == DMG_MULTI_HIT_CRITICAL) {
@@ -7478,9 +7463,11 @@ static struct Damage battle_calc_weapon_attack(struct block_list *src, struct bl
 				ATK_ADDRATE(wd.damage, wd.damage2, sd->bonus.long_attack_atk_rate);
 		}
 
-		ratio = battle_calc_attack_skill_ratio(&wd, src, target, skill_id, skill_lv); // skill level ratios
+		// Skill ratio
+		ATK_RATE(wd.damage, wd.damage2, battle_calc_attack_skill_ratio(&wd, src, target, skill_id, skill_lv));
 
-		ATK_RATE(wd.damage, wd.damage2, ratio);
+		// Additive damage bonus
+		ATK_ADD(wd.damage, wd.damage2, battle_calc_skill_constant_addition(&wd, src, target, skill_id, skill_lv));
 
 		// Advance Katar Mastery
 		if (sd) {
@@ -7493,7 +7480,7 @@ static struct Damage battle_calc_weapon_attack(struct block_list *src, struct bl
 		// Res reduces physical damage by a percentage and
 		// is calculated before DEF and other reductions.
 		// This should be the official formula. [Rytech]
-		if ((wd.damage + wd.damage2) && tstatus->res > 0) {
+		if ((wd.damage + wd.damage2) && tstatus->res > 0 && skill_id != MO_EXTREMITYFIST) {
 			short res = tstatus->res;
 			short ignore_res = 0;// Value used as a percentage.
 
@@ -7578,6 +7565,16 @@ static struct Damage battle_calc_weapon_attack(struct block_list *src, struct bl
 			if(sd && sd->weapontype1 == W_FIST && sd->weapontype2 == W_FIST)
 				ATK_ADD(wd.damage, wd.damage2, 10 * pc_checkskill(sd, TK_RUN));
 			break;
+		case LG_SHIELDPRESS:
+			if (sd) {
+				int damagevalue = 0;
+				short index = sd->equip_index[EQI_HAND_L];
+
+				if (index >= 0 && sd->inventory_data[index] && sd->inventory_data[index]->type == IT_ARMOR)
+					damagevalue = sstatus->vit * sd->inventory.u.items_inventory[index].refine;
+				ATK_ADD(wd.damage, wd.damage2, damagevalue);
+			}
+			break;
 		case SR_TIGERCANNON:
 			// (Tiger Cannon skill level x 240) + (Target Base Level x 40)
 			if (wd.miscflag&8) {