Etherium Shovel

That's one compact and portable excavator.

Obtaining:

It can be created in a Crafting Table, via shaped recipe:

Effects:

When mining a block that shovel is effective on, it will break additional such blocks in 3x3x1 area centered around the broken block, orientated respectively to the player's sight. This effect will not trigger if they are holding Shift, however, allowing to mine individual blocks if it's required.

Trivia:

Etherium Shovel has 3000 points of durability and slightly faster breaking speed, similar to other tools made of Etherium.