Shield of the Realm

Artifact — Equipment

If a source would deal damage to equipped creature, prevent 2 of that damage.
Equip

2018-04-27:
If multiple sources would deal damage to the equipped creature at once (for example, several blocking creatures), 2 damage from each of those sources is prevented.
2018-04-27:
If a creature is equipped with two Shields of the Realm, 4 damage will be prevented. Three Shields of the Realm will prevent 6 damage, and so on.
2018-04-27:
If multiple replacement effects would modify how damage would be dealt, the controller of the permanent being dealt damage chooses the order in which to apply those effects.