In the server, you can choose one of these:

1 Amethyst Tree Chopper (Breaks Trees Instantly)
1 Amethyst Sell Axe (Instant Sells All Items in A Chest)
1 Amethyst Drill (Breaks 9 Blocks At Once)
1 Amethyst Shovel (Breaks 9 Blocks At Once)

1 Amethyst Hoe (Breaks 9 Plants At Once and Replants Them)

1 Amethyst Bucket (Places water without ever running out)