Kera

The Kera is a block added by Better With Addons. When broken with a Pickaxe it either drops Iron Ingots, Tamahagane or Hocho-Tetsu.

3 drops are rolled whenever it is destroyed, each having a 20% chance of being an Iron Ingot, 20% chance of being a Hocho-Tetsu, 30% of being a Tamahagane and 30% of being nothing (except the first drop, with probabilities adjusted accordingly).