When Moorland Rescuer dies, return any number of other creature cards with total power X or less from your graveyard to the battlefield, where X is Moorland Rescuer's power. Exile Moorland Rescuer.
If Moorland Rescuer is exiled from its owner's graveyard in response to its triggered ability, the creature cards will still be returned to the battlefield.
Moorland Rescuer's ability uses the power Moorland Rescuer had when it was last on the battlefield, not its power in the graveyard.