Sharpening Stones

Sharpening Stones increase damage. 
They don't appear directly in your inventory, rather indicated by tick marks next to the Pine Sword, each tick representing one Sharpening Stone
There are a total of 4 to find in the world, which will increase your Pine Sword damage to +8.
#	Area 	Location
1	Color Caverns 	Unlocked in the Ladybug Rewards room.
Requires 25 , this will likely be the final Sharpening Stone you'll acquire.
2	Corrupted Tunnels	In a room that's in the most south-eastern part of Corrupted Tunnels.
The room is shaped like a lowercase "n". It also contains , and its eastern exit leads to Lava Temple.
Requires to reach.
3	Acid Dungeon 	In a room directly south of the top Golden Shrine.
From the top Golden Shrine, exit from the bottom-right room to reach another room. From this room, take the bottom-left exit, which is below the top-left route you came in by.
4	Frozen Depths 	In a room that's between a Ladybug room and the top Golden Shrine.
From the top Golden Shrine, go left 1 room, then left again. If you haven't unlocked the shortcut yet, you won't be able to go left a 2nd time because there's a doorway that can only be opened from the left side, so to reach this room you'll need to follow the path from below the Golden Shrine, and clockwise until you reach this room and can open the shortcut. The upgrade is at the bottom of this room.
Category:Collectibles