@Override
	public boolean invoke(MOB mob, List<String> commands, Physical givenTarget, boolean auto, int asLevel)
	{
		final MOB target=this.getTarget(mob,commands,givenTarget);
		if(target==null)
			return false;

		if(!super.invoke(mob,commands,givenTarget,auto,asLevel))
			return false;
		final boolean success=proficiencyCheck(mob,0,auto);

		if(success)
		{
			invoker=mob;
			final CMMsg msg=CMClass.getMsg(mob,target,this,verbalCastCode(mob,target,auto)|CMMsg.MASK_MALICIOUS,auto?"":L("^S<S-NAME> incant(s) rudely to <T-NAMESELF>.^?"));
			final CMMsg msg2=CMClass.getMsg(mob,target,this,CMMsg.MSK_CAST_MALICIOUS_VERBAL|CMMsg.TYP_DISEASE|(auto?CMMsg.MASK_ALWAYS:0),null);
			if((mob.location().okMessage(mob,msg))&&(mob.location().okMessage(mob,msg2)))
			{
				mob.location().send(mob,msg);
				mob.location().send(mob,msg2);
				if((msg.value()<=0)&&(msg2.value()<=0))
				{
					invoker=mob;
					maliciousAffect(mob,target,asLevel,0,-1);
					mob.location().show(target,null,CMMsg.MSG_OK_VISUAL,L("<S-NAME> feel(s) different somehow..."));
				}
				else
					spreadImmunity(target);
			}
		}
		else
			return maliciousFizzle(mob,target,L("<S-NAME> incant(s) rudely to <T-NAMESELF>, but the spell fades."));
		// return whether it worked
		return success;
	}