Ming Dynasty Rocket Weapons for D&D 5E
Based on information from this excellent site: https://greatmingmilitary.blogspot.com/2015/09/rocket-weaponry-of-ming-dynasty-p1.html There are many more fascinating weapons listed there, I just assigned some stats to a few that stood out to me. Huo Long Jian (火籠箭, lit. 'Fire basket arrow')
Handheld bamboo basket rocket pod carrying 20 incendiary rockets.
1 charge 5x30ft Line DC13 Dex save 2d4 Piercing + 2d4 Fire damage on fail, half on success
Huo Jian Liu (火箭溜 lit. 'Fire arrow slip')
Matchlock gun-style launcher for black powder rocket arrows.
Weight: 2 pounds Damage: 1d4 Piercing + 1d4 Poison Properties: Ammunition, 2-handed, Range 80/320
Note: like a shortbow, and unlike a light crossbow, this weapon does not suffer the Loading property
Chang She Po Di Jian (長蛇破敵箭, lit. 'Long serpent enemy-breaking arrow')
Wooden rocket pod carrying 30 medium-small poison-tipped rockets. Designed for handheld use, with a sling attached for the pod to be carried on the back.
1 charge 5x30ft Line DC15 Con save 4d4 poison damage on fail, half on save
Qun Ying Zhu Tu Jian (羣鷹逐兔箭, lit. 'Convocation of eagles chasing hare arrow' )
Double-ended rocket pod carrying 30 small poison-tipped rockets at each end. Comes with a sling to be carried on the back.
2 charges 5x30ft Line DC15 Con save 4d4 poison damage on fail, half on save
San Yan Qiang (三眼鎗, lit. 'Three-eyed spear')
A spear with three bamboo rocket-launching tubes.
Spear Melee weapon, simple Damage: 1d6 Piercing (1d8 when used 2-handed) Item Rarity: Standard Properties: Range, Reach, Thrown, Versatile (1d8) Range: 10ft Melee, 20/60 Thrown Weight: 3
Compatible with Polearm Master feat
Rocket Tube As a Bonus Action the wielder can fire one of the three rocket tubes, making a Ranged Attack roll, and dealing 1d4 Piercing + 1d4 Poison damage on a hit. This feature can be used 3 times before needing to be reloaded, which takes a short or long rest.