- Overpowered some more NPC_EARTHQUAKE as per Gravity retardation.

git-svn-id: https://svn.code.sf.net/p/rathena/svn/trunk@11822 54d463be-8e91-2dee-dedb-b68131a5f0ec

src/map/battle.c

@@ -2335,6 +2335,8 @@ struct Damage battle_calc_magic_attack(struct block_list *src,struct block_list
 					//mdef2-= mdef2* i/100;
 				}
 			}
+			if (skill_num == NPC_EARTHQUAKE)
+				mdef>>=1; //Halves MDEF (stupid overpowered skill)
 			if(battle_config.magic_defense_type)
 				ad.damage = ad.damage - mdef*battle_config.magic_defense_type - mdef2;
 			else