NOTE: all glitches are done on version 1.2.13.60 Mobile and 1.2.13 PC (Although some of them works in other versions, these are the best ones to use) #Mobile Dupe

1. Place item to dupe in the crafting grid
2. Keep pressed until the green bar thing appears
3. Click any "Impossible" craft (red ones)
4. Press the item to dupe (that is in your hotbar now -> it should have moved there since you pressed the impossible craft)
5. Your item should be duped

Video by @nathkm11:

#PC Dupe

1. Put the item on the chest
2. activate the piston
3. Open the chest and pick the item the moment the piston deactivates
4. Your item should be duped Multiple setups: https://i.imgur.com/xqZP1qw https://i.imgur.com/jcDWT5y Note: the last one is only recomended if on SS Any%

#Dragon Skip

1. With a water bucket in hands, aim at the side of a end portal frame
2. Place the water and pick the item that pops up
3. Enter end and place the block
4. Walk into it (It works both on PC and on mobile) Video demonstration: