Blue Luck Ring
"1/2 damage from beams"
The Blue Luck Ring is a Magical Ring that Link can obtain in Oracle of Seasons and Oracle of Ages. In both Oracle of Seasons and Oracle of Ages, Link can acquire the ring by planting a Gasha Seed and finding it within a Gasha Nut. He can also acquire it in a Seed Ring form by bumping into Maple. The ring can also be obtained through a Fortune Link at Vasu's jewelry store.
In Oracle of Ages, the Blue Luck Ring can be found within a Cave in the Present. Navigate to the very west end of the Overworld. One screen north of Jabu-Jabu's Belly, there is a bombable wall. Place a Bomb to explode open the entrance and head inside. Using the Power Glove, lift up the Sarcophagus Statues in the room. The one on the left side of the room reveals a Treasure Chest in which a Seed Ring can be found inside. Once appraised, this becomes the Blue Luck Ring.
When equipped, the Blue Luck Ring will cut the damage done by beams in half. Since there are very few enemies that attack like this, this is not considered a very useful Ring. Even the enemies that do attack this way, such as Beamos, are not too common. There are significantly better defensive rings that Link acquires in the game, including the Red Ring or the Armor Ring L-1.