If a stonskined wizard is taking damage should he make a concentration check?

@blackwarder @wotc_rodneyif a stonskined wizard is taking damage should he make a concentration check? yes, unless spell says otherwise

— Mike Mearls (@mikemearls) July 5, 2014

@blackwarder @wotc_rodneyso is it intended to be cast on the fighter and not on the wizard? that's probably your best use for it

— Mike Mearls (@mikemearls) July 5, 2014