Code Added:
if(isequipped(2421,2524)) { bonus2 bSubEle,Ele_Water,15; bonus2 bSubEle,Ele_Earth,15; bonus2 bSubEle,Ele_Fire,15; bonus2 bSubEle,Ele_Wind,15; bonus2 bSubEle,Ele_Poison,15; bonus2 bSubEle,Ele_Holy,15; bonus2 bSubEle,Ele_Dark,15; bonus2 bSubEle,Ele_Ghost,15; bonus2 bSubEle,Ele_Undead,15; }
Your Item Code Should Look like this: (Using Renewal db)
2357,Valkyrie_Armor,Valkyrian Armor,5,0,,2800,,55,,1,0xFFFFFFFE,2,2,16,,1,1,0,{ bonus bAllStats,1; bonus bUnbreakableArmor,0; if(BaseClass==Job_Mage||BaseClass==Job_Archer||BaseClass==Job_Acolyte) bonus2 bResEff,Eff_Silence,5000; else if(BaseClass==Job_Swordman||BaseClass==Job_Merchant||BaseClass==Job_Thief) bonus2 bResEff,Eff_Stun,5000; if(isequipped(2421,2524)) { bonus2 bSubEle,Ele_Water,15; bonus2 bSubEle,Ele_Earth,15; bonus2 bSubEle,Ele_Fire,15; bonus2 bSubEle,Ele_Wind,15; bonus2 bSubEle,Ele_Poison,15; bonus2 bSubEle,Ele_Holy,15; bonus2 bSubEle,Ele_Dark,15; bonus2 bSubEle,Ele_Ghost,15; bonus2 bSubEle,Ele_Undead,15; } },{},{}