text: If damage is dealt to multiple permanents you control, or is dealt to you and at least one permanent you control, you choose which of that damage to prevent if the chosen value for X won’t prevent all the damage. For example, if 3 damage would be dealt to you and to each of two creatures you control, and Divine Deflection will prevent the next 3 damage, you might choose to prevent the next 2 damage it would deal to you and the next 1 damage it would deal to one of the creatures, among other choices. You don’t decide until the point at which the damage would be dealt.