The Wizard's Magic Bag

From publisher blurb: What does the Wizard of Oz have inside his Magic Bag? New magical rules and options for Adventures in Oz: Fantasy Roleplaying Beyond the Yellow Brick Road! Add detail with expanded rules for Transmutation and battle magic, or get the rules out of your way and turn the power of friendship into magic. Explore the wonders of Oz with magic items drawn from the classic Oz novels, including some that blur the line between items and spells.