A Rage potion is one of many consumable items in Terraria, and this one in particular is pretty useful for getting the Rage Buff, so here's how to make it and what you will need.
How to craft Rage Potion in Terraria
In short, to make a rage potion in Terraria, you will need the following items and an alchemy table if you are on PC/mobile or a placed bottle if you are on consoles.
- Bottled Water
To get the bottled water, you need for the rage potion; you need to make it with two glass and a furnace. After that, you will then need to use it on a water source such as a sink to turn it into bottled water.
Next, you will need to get yourself some deathweed. To do this, you will need to gather it from a corrupted biome, and inside the biome, you can find it growing on both on crimson grass and ebonstone blocks.
Once you got the deathweed, you will then need to get the fish which is called Hemopiranha, and to get this strange fish, you will need to fish in a crimson layer.
Related: How to get Ectoplasm in Terraria
When you have all three materials, you will then need to use either an alchemy table or placed bottle, depending on your platform to make it. If you want an alchemy table, you will need to explore the dungeon biome to find it, as it doesn't have a crafting recipe. But unlike the table, a placed bottle can be made easily with just a bottle or vase when placed on furniture such as a shelf.
That said, once you got either of these crafting stations placed down, you will be able to make a Rage Potion, and consuming it will give you a decent buff to critical damage.