This could be useful for containing the spreading biomes, as they cannot spread across a 5 block wide gap.

Falling down the edge of a 2-block wide shaft while holding 'use' will allow it to mine all nearby blocks, widening the shaft to 5 blocks, while mining most of the 6th column behind it.

Astral Ore cannot be mined unless Astrum Deus has been defeated.

Lihzahrd Bricks cannot be mined unless Golem has been defeated.

Chlorophyte Ore cannot be mined unless Plantera has been defeated.

Planty Mush and Tenebris cannot be mined unless Calamitas or Plantera have been defeated.

Cobalt Ore, Palladium Ore, Mythril Ore, Orichalcum Ore, Adamantite Ore, and Titanium Ore cannot be mined unless a Mechanical Boss has been defeated.

Note that this pickaxe power requirement also applies to bricks on the surface and in space, even though they can be mined with any pickaxe in those layers.

Similarly, Dungeon Bricks cannot be mined unless the player has a pickaxe with at least 65% pickaxe power, which is the pickaxe power needed to mine the bricks when they are located in the Underground Layer and below.

Hellstone cannot be mined unless the player has a pickaxe that can mine them.

Sunken Sea blocks cannot be mined unless the Desert Scourge has been defeated.

Abyss Gravel, Charred Ore, Scoria Ore, Voidstone, and the Eternia Crystal Stand cannot be mined at all with the Drill.

Several blocks are specifically blacklisted to prevent sequence breaks:.

The Onyx Excavator can only dig to the sides. Additionally, all fall damage the player takes while inside the excavator is reduced to 5, increased to 10 in hardmode. This is calculated independently from normal DR and is not affected by Calamity's DR scaling system. While horizontally moving at over half the mount's maximum run speed (20 mph), the player's damage reduction is increased by 10%. Standing next to blocks and holding the 'use' button causes it to mine out most of the blocks on either side of it, and allowing you to use the item you're holding as normal. The Onyx Excavator is capable of moving and digging at a speed of 40 mph horizontally and can jump a single block off the ground. This damage can be boosted through summoner bonuses. Like the Basilisk, it can charge enemies and deals 25 damage upon contact. When used, it summons an Onyx Excavator which acts similarly to the Basilisk summoned by the Ancient Horn but allows the player to drill through almost all blocks in the game. The Onyx Excavator Key is a Pre-Hardmode mount summoning item obtained from the Cavern shrine. The power of the destruction scales with the highest powered pickaxe in your inventory With complete disregard for all the creatures that inhabit these lands.

Summons a drill to drill through the world so you can destroy all the neat world generation

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