Leaf is excellent for low-level Sorceresses using staves. It provides a Warmth bonus which helps a lot with mana regeneration. Both runes are easily obtained, Ral as a reward for an Act V quest and both as common drops from The Countess. The low requirement level allows the player to have an easy time until mid-Nightmare or even Hell.
Required Sockets: 2
Character lvl Req: 19
Cost Requirement: Lowest
Tir
Ral