The Miner Villager

Minecraft should add a very rare Miner Villager, with around a 1–5% chance of appearing in a normal village. You could give him food and a pickaxe, then send him on a 3-day mining expedition. He would disappear during the expedition and return with valuable resources like iron, gold, redstone, and sometimes diamonds. If he doesn’t return, you lose both the Miner and everything you gave him. Reusing him too soon would be risky: 90% chance of not returning after 1 day, 70% after 2, 60% after 3, and 40% after 4. After waiting 5 days, the risk drops to only 1–2%. The Miner could complete 20 successful expeditions before becoming a normal village