Thunderstick Mod which adds to the game Minecraft PE 0.12.1 and 0.11.1 thunder sticks with which you can quickly destroy blocks entire bundles or destroy mobs. Once you have sticks, you can tap it to call a few zippers that will look like the red pillars and will descend from the sky. All that will be under them will instantly disappear and in its place will be in flames the fire.
If you want to quickly destroy blocks in Pocket Edition, or you are tired to fight mobs in melee, then the mod will surely please you. The only thing you have to consider, for it to work you'll need to mod TooManyItems