Power Ring L-2
The Power Ring L-2 is a Magical Ring that Link acquires in either Oracle of Seasons or Oracle of Ages. In both Oracle of Seasons and Oracle of Ages, Link can acquire the L-2 Power Ring as a random Seed Ring when bumping into Maple. Link can also acquire the ring from a Gasha Nut after planting a Gasha Seed.
Make the sword and enemies more powerful. Double the effects of Power Ring L-1.
"Sword damage +2, Damage taken +2"
In Oracle of Ages, the Power Ring L-2 can be found within a cave on Crescent Island while in the Past. The cave is at the southeast most screen of the entire Overworld. Link needs to use the Long Hook to reach the Treasure Chest that contains the Seed Ring.
When equipped, the Power Ring L-2 is similar to that of Power Ring L-1, but just a bit more powerful. It increases the damage done by Link's Sword by two units as well increase the damage taken by enemy attacks by two units. This is a useful ring if Link isn't too concerned with his Life Meter.
A more powerful version of this ring can be found in the form of Power Ring L-3.
The Oracle of Seasons and Ages Nintendo Power Guide incorrectly states that this ring can be found within the Gnarled Root Dungeon. There is a Treasure Chest in the dungeon that contains a Seed Ring, but when appraised, this becomes the Discovery Ring.