Maple’s Ring

From Zelda Wiki.org

Maple's Ring is one of many such rings found in both Oracle of Ages and Oracle of Seasons. In either game, it can be obtained through a Fortune Link, taken after bumping into Maple, or found inside a Gasha Nut.

Maple normally appears after the player slays thirty monsters. When worn, this ring will cause Maple to appear after fifteen enemies are slain. Because it only functions on the surface of Holodrum or Labrynna, it's pointless to wear this item while in Subrosia or a dungeon.