Leaf is the rune word 'TirRal' for staves in Diablo II: Lord of Destruction. Leaf is an excellent Rune Word for a lower level Sorceress. The Warmth bonus really helps keep the Sorceress casting her spells. Both runes are very easily acquired (the Ral Rune is given as part of a reward for an Act V quest, while both are common drops from The Countess), and the low requirement level allows lucky Sorceresses to have an easy time until mid-Nightmare or even Hell. When combined with a Staff which innately already gives a bonus to the Warmth Skill, this staff potentially generates a total of +9 to Warmth which is very helpful for early game Sorceresses where mana depletion is a constant issue. However, it has the downside of being a staff which is making it impossible to equip a Shield with this