Beacon Block

Beacon (known as Beacon Block in SkyBlock) is a block that gives potion effects while player is in a range of it. It can be placed and works on a Private Island.

Crafting
Beacons could previously be obtained by using items with the appearance of a Nether Star, but it was patched in later versions, meaning there was a limited supply of Beacons before the Dwarven Mines were released. Beacons still worked after the patch as they did before.

History
Beacon was a unobtainable block that gives potion effects while player is in a range of it. Due to the new update, Beacons are once again obtainable through the Mithril collection.

Trivia

 * Unlike vanilla, Beacons are called "Beacon Blocks" in Hypixel SkyBlock.