Leaf Furnace

Once your in-run upgrades are maxed, leaves have nowhere to go — the furnace burns them for a random reward. Prices form a ladder: pulls unlock steadily as you push toward your best wave in that world, and boosting your leaf income lets you afford more of them. Quitting does not reset it — the ladder continues until you complete a real run (50+ waves or a new record).

What can drop

• Essence — the everyday drop, no limit.
• War Spoils — for leveling your banners, up to 80 a day.
• A random crafting material — up to 50 a day.
• Diamonds — the rare jackpot, up to 30 a day.