Dangersense Potion - Official Terraria Wiki

Step 1

↑ Information taken from the Desktop 1.4.4.9 source code, method IsTileDangerous() in Terraria.GameContent.Drawing.TileDrawing.cs.

Step 2

↑ 1.0 1.1 1.2 Only if the player does not have the Obsidian Skin buff, or is not wearing the Obsidian Skull or any of the combined accessories that use it as an ingredient. ↑ Only if the player is not wearing Ice Skates or any of the combined accessories that use them as an ingredient. ↑ Only in For the worthy and Get fixed boi worlds. ↑ Only in Constant worlds.