The over-shields from a warlock's healing rift clear any other over-shields the player may have. This is particularly noticeable in conflict with a mod from the seasonal artefact (Arc Battery), which gives the player an over-shield when casting their class ability Example: -Warlock character -Switch to arc subclass -Equip Arc Battery seasonal mod in armour -Cast healing rift Observe: -Player is given an over-shield at the moment of activation -Over-shield is immediately cleared and a new one starts slowly charging from the healing rift