//Put this OnEnter
void main()
{

object oPC = GetEnteringObject();

if (!GetIsPC(oPC)) return;

int DoOnce = GetLocalInt(OBJECT_SELF, GetTag(OBJECT_SELF));

if (DoOnce==TRUE) return;

SetLocalInt(OBJECT_SELF, GetTag(OBJECT_SELF), TRUE);

effect eEffect = EffectDamage(500, DAMAGE_TYPE_SLASHING, DAMAGE_POWER_NORMAL);

ApplyEffectToObject(DURATION_TYPE_INSTANT, eEffect, GetObjectByTag("SET_Merc1"));
ApplyEffectToObject(DURATION_TYPE_INSTANT, eEffect, GetObjectByTag("SET_Merc2"));
ApplyEffectToObject(DURATION_TYPE_INSTANT, eEffect, GetObjectByTag("SET_Merc3"));
ApplyEffectToObject(DURATION_TYPE_INSTANT, eEffect, GetObjectByTag("SET_Merc4"));
ApplyEffectToObject(DURATION_TYPE_INSTANT, eEffect, GetObjectByTag("SET_Merc5"));
ApplyEffectToObject(DURATION_TYPE_INSTANT, eEffect, GetObjectByTag("SET_Merc6"));

}

