If a spell or ability creates an effect that prevents damage that would be dealt by a source, it can affect only sources within the spell or ability’s controller’s range of influence. If a spell or ability creates an effect that prevents damage that would be dealt to a permanent or player, it can affect only permanents and players within the spell or ability’s controller’s range of influence. If a spell or ability creates an effect that prevents damage, but neither the source nor the would-be recipient of the damage is specified, it prevents damage only if both the source and recipient of that damage are within the spell or ability’s controller’s range of influence.
January 25, 2019 · Ravnica Allegiance
If a spell or ability creates an effect that prevents damage that would be dealt by a source, it can affect only sources within the spell or ability's controller's range of influence. If a spell or ability creates an effect that prevents damage that would be dealt to a permanent or player, it can affect only permanents and players within the spell or ability's controller's range of influence. If a spell or ability creates an effect that prevents damage, but neither the source nor the would-be recipient of the damage is specified, it prevents damage only if both the source and recipient of that damage are within the spell or ability's controller's range of influence.
February 1, 2014 · Born of the Gods
If a spell or ability creates an effect that prevents damage that would be dealt by a source, it can affect only sources within the spell or ability’s controller’s range of influence. If a spell or ability creates an effect that prevents damage that would be dealt to a permanent or player, it can affect only permanents and players within the spell or ability’s controller’s range of influence. If a spell or ability creates an effect that prevents damage, but neither the source nor the would-be recipient of the damage is specified, it prevents damage only if both the source and recipient of that damage are within the spell or ability’s controller’s range of influence.
July 13, 2013 · Magic 2014
If a spell or ability creates an effect that prevents damage that would be dealt by a source, it can affect only sources within the spell or ability's controller's range of influence. If a spell or ability creates an effect that prevents damage that would be dealt to a permanent or player, it can affect only permanents and players within the spell or ability's controller's range of influence. If a spell or ability creates an effect that prevents damage, but neither the source nor the would-be recipient of the damage is specified, it prevents damage only if both the source and recipient of that damage are within the spell or ability's controller's range of influence.