Use the Talisman of Wonder to Convert Items into XP
What the Talisman Does
The Talisman of Wonder converts stackable items into pure XP. You sacrifice a full stack of items along with the Talisman in a crafting recipe to get the Talisman back plus XP based on the stack size and item type.
Convertible Items
You can convert: Coal, Iron Ore, Gold Ore, Iron Ingot, Gold Ingot, Diamond, Redstone, Lapis Lazuli, Book, Brick, Cooked Fish, Steak, Cooked Chicken, Cooked Porkchop, Pumpkin, Melon, and Bread.
How to Use It
1. Gather a stack of convertible items
2. Place the Talisman and your stack together in a crafting grid
3. Take the resulting Talisman from the output
4. The entire stack is consumed and converted to XP
Important Warning
Small stacks of low-value items (like Coal) may not yield any XP at all and will simply be destroyed. Always use reasonably-sized stacks, especially with items worth less XP. Test with a small batch first if you're unsure.
This is an efficient way to convert excess materials into skill progression.