Elrond, Master of Healing

Elrond, Master of Healing's first ability cares about the number of cards you actually looked at. For example, if you were supposed to scry 3 but only had two cards in your library, X would be 2.

If two creatures you control with +1/+1 counters on them become the target of the same spell or ability an opponent controls, Elrond, Master of Healing's last ability will trigger twice.