Scrolls as essentially enchants that can be used within the Infernal Enchanter. These let you choose which enchant you want on your weapons/tools/armor. These are single use, and drop from mobs. The default drop chance is 0.1%, boosted by the Looting enchant. Bosses have a 100% drop chance for these scrolls:

Mob Scroll
Bat Feather Falling
Blaze Flame
Creeper Blast Protection
Endermen Silk Touch
Ender Dragon Sweeping
Ghast Punch
Guardian Depth Strider
Magma Cube Fire Aspect
Pig Zombie Fire Protection
Polar Bear Frost Walker
Silverfish Efficiency
Skeleton Projectile Protection
Skeleton (While in the Nether) & Wither Skeleton Infinity
Slime Protection
Spider Bane of Arthropods
Squid Respiration
Witch Aqua Affinity
Wither Knockback
Zombie Smite

Not Yet Obtainable:

  • Sharpness
  • Looting
  • Unbreaking
  • Fortune
  • Power
  • Luck of the Sea
  • Binding Curse
  • Vanishing