private final boolean isGmBuff() {
        switch (sourceid) {
            case 1005: // echo of hero acts like a gm buff
            case 10001005: // cygnus Echo
            case 20001005: // Echo
            case 9001000: // GM dispel
            case 9001001: // GM haste
            case 9001002: // GM Holy Symbol
            case 9001003: // GM Bless
            case 9001005: // GM resurrection
            case 9001008: // GM Hyper body
                return true;
            default:
                return false;
        }
    }