tokens

I have an idea for EggWars where you could trade gold for iron, diamonds for iron or gold, or emeralds for diamonds, gold, or iron with villagers. Trades: 1 Gold ➜ Some iron 1 Diamond ➜ A lot of iron 1 Diamond ➜ Some gold 1 Emerald ➜ Some diamonds 1 Emerald ➜ A lot of gold 1 Emerald ➜ A ton of iron