When the blocks get angry at being taken advantage of by the player, they decide to take revenge? Revenge of the Blocks Mod adds living blocks, which can be either good or evil. Ores spawn underground and appear to be normal ores, until they are broken. After broken, they attack, and the player must defend itself.
Revenge of the Blocks Mod Screenshots:
The pet crafting table, which can be tamed and will follow you. When you right click it with an empty hand, it will display the crafting gui.
The minion TNT, which attacks hostiles.
The nether quartz mob, which generates as an ore in the nether and shoots fireballs: